Laboratory materials sourced to your specification

The categories below represent laboratory materials and product types Rashi Group may source and supply through established supply channels. Manufacturer, grade, specification, pack size, pricing and documentation are confirmed at the quotation stage.

Laboratory instruments and glassware on a clean analytical bench

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Availability, grade and pack size are confirmed on request — no stock levels or prices are published.

Product portfolio

Twelve laboratory categories

Each category page lists typical materials and the details we need in order to quote. Items are subject to grade, specification, pack size, quantity and manufacturer or supplier availability.

Laboratory Chemicals & Reagents — representative laboratory materials

Laboratory Chemicals & Reagents

Acids, bases, salts and analytical reagents across ACS, AR/GR, ExtraPure and LR grades.

General and analytical laboratory chemicals for wet chemistry, sample preparation and routine testing, quoted by grade, assay and pack size.

Typical scope

  • Acids
  • Bases & alkalis
  • Salts
  • Oxidising & reducing agents
  • Analytical & high-purity reagents
  • Organic reagents
Analytical & HPLC Grade Solvents — representative laboratory materials

Analytical & HPLC Grade Solvents

Available in grades with specified UV absorbance and residue specifications, as applicable.

Solvents supplied in HPLC, UHPLC, LC-MS, GC, spectroscopy, ACS, AR and LR grades, in pack sizes from 500 mL upward; bulk quantities available subject to availability and applicable transport requirements.

Typical scope

  • Organic solvents
  • Water & aqueous products
  • Specialty solvents
Chromatography Products & Consumables — representative laboratory materials

Chromatography Products & Consumables

Columns, sample preparation media and vials for HPLC, GC and TLC workflows.

Chromatography hardware and consumables for method development, routine analysis and sample clean-up.

Typical scope

  • Columns
  • Sample preparation
  • Thin layer chromatography
  • Accessories
Microbiology & Culture Media — representative laboratory materials

Microbiology & Culture Media

Dehydrated and ready-to-use media, supplements and microbiological reagents.

Media and reagents for microbiological testing workflows including sterility testing, environmental monitoring, water analysis and routine microbiology applications.

Typical scope

  • Dehydrated media
  • Selective & differential media
  • Ready-to-use formats
  • Reagents & testing supplies
Laboratory Glassware — representative laboratory materials

Laboratory Glassware

Class A and Class B borosilicate volumetric and general glassware.

Borosilicate 3.3 and soda-lime glassware specified by class, tolerance, capacity and joint size. Class A items are manufactured to tighter specified tolerances; calibration/certification availability is manufacturer-specific. Tolerance and calibration specifications are manufacturer-specific and shall be confirmed against the supplied product documentation.

Typical scope

  • Volumetric glassware (Class A / Class B)
  • General glassware
  • Assemblies & accessories
Laboratory Plasticware & Consumables — representative laboratory materials

Laboratory Plasticware & Consumables

HDPE, LDPE, PP and PTFE ware, tubes, tips and disposables.

Autoclavable options and disposable plasticware for sample handling, storage and molecular work.

Typical scope

  • Tubes & containers
  • Pipetting & PCR
  • General disposables
Filtration Products — representative laboratory materials

Filtration Products

Filter papers, membranes, syringe filters and filtration hardware.

Filtration media across common retention ratings, pore sizes and disc diameters for sample clarification and mobile-phase preparation.

Typical scope

  • Filter papers
  • Membranes
  • Hardware & devices
Laboratory Standards & Reference Materials — representative laboratory materials

Laboratory Standards & Reference Materials

Inorganic, organic, pharmacopeial and certified reference materials.

Reference materials for calibration, method validation and routine QC, supplied with applicable manufacturer documentation, including COA/SDS where issued.

Typical scope

  • Inorganic standards
  • Organic standards
  • Pharmacopeial & compendial
  • Certified reference materials
Indicators, Dyes & Stains — representative laboratory materials

Indicators, Dyes & Stains

Titration indicators, biological stains and staining kits.

Indicators and stains for volumetric analysis, microscopy and microbiological identification.

Typical scope

  • Titration indicators
  • Biological stains
  • Kits & papers
Buffers, Solutions & Prepared Reagents — representative laboratory materials

Buffers, Solutions & Prepared Reagents

Ready-made buffers, volumetric solutions and prepared reagents.

Prepared solutions supplied ready to use, which can reduce in-house preparation requirements and may improve batch-to-batch consistency.

Typical scope

  • Buffer solutions
  • Volumetric solutions
  • Prepared reagents
Inorganic & Organic Chemicals — representative laboratory materials

Inorganic & Organic Chemicals

Bulk and fine chemicals across inorganic salts and organic compounds.

Inorganic and organic chemicals for research, production support and routine laboratory use, in pack sizes from 25 g to bulk.

Typical scope

  • Inorganic chemicals
  • Organic chemicals
  • Pack formats
Laboratory Accessories & General Consumables — representative laboratory materials

Laboratory Accessories & General Consumables

Support equipment, safety items and everyday laboratory supplies.

Accessories and consumables that keep daily laboratory operations running, supplied alongside chemical and glassware orders.

Typical scope

  • Bench accessories
  • Safety & handling
  • General consumables

In detail

Product groups, grades & specifications

The groups below expand the categories above with the typical items, grades, pack formats and documentation involved. All details are confirmed at the quotation stage.

Accuracy you can rely on

Analytical Standards & CRMs

Inorganic, organic and pharmacopeial standards for calibration, method validation and routine QC, described by grade and specification rather than by brand.

Inorganic standard solution bottles with blank labels on a laboratory bench

Inorganic Standards

Single and multi-element solutions for trace metal analysis.

  • Single-element solutions
  • Multi-element / custom blends
  • ICP, ICP-OES, ICP-MS calibration sets
  • AAS calibration solutions
  • Ion chromatography anion & cation standards
  • Tuning, internal standard and interference-check solutions

Grades & specifications

  • Concentrations: 10 / 100 / 1,000 / 10,000 µg/mL (mg/L)
  • Matrices: dilute HNO₃, HCl, H₂O or aqueous as method requires
  • Pack sizes: 50 mL, 100 mL, 125 mL, 250 mL, 500 mL
  • Documentation: Certificate of Analysis, Safety Data Sheet
Rack of amber organic reference standard ampoules

Organic Standards

Neat and solution standards for GC, LC and residue testing.

  • Neat (solid / liquid) standards
  • Ready-to-use solution standards & mixes
  • Pesticide and residue standards
  • Environmental standards: VOC, SVOC, PAH, PCB, phthalates
  • Residual solvent and impurity standards
  • Deuterated / labelled internal standards

Grades & specifications

  • Purity classes: ≥95%, ≥98%, ≥99% and high-purity assay grades
  • Formats: ampoule, septum vial, amber glass
  • Pack sizes: 10 mg, 50 mg, 100 mg, 250 mg; 1 mL, 5 mL, 10 mL solutions
  • Storage classes: ambient, 2–8 °C, −20 °C as specified on the label
Sealed pharmacopeial reference standard vials in a laboratory

Pharmacopeial & Compendial

Pharmacopeial and compendial reference standards, subject to manufacturer availability.

  • Pharmacopeial reference standards, impurity standards and working standards, subject to manufacturer availability and applicable requirements
  • Working / secondary standards
  • Impurity and degradation-product standards
  • System suitability and resolution mixtures

Grades & specifications

  • Supplied in original sealed manufacturer packs
  • Lot-specific documentation as issued by the manufacturer
  • Pack sizes as published in the respective monograph catalogue
Certified reference material vials next to an analytical balance

Certified Reference Materials (CRMs)

Certified materials for calibration, verification and method validation.

  • Matrix CRMs: soil, sludge, water, food, feed, alloy
  • Calibration verification and QC check standards
  • Proficiency-testing support materials
  • Physical property standards: pH, conductivity, turbidity, viscosity, melting point

Grades & specifications

  • Certified value and measurement uncertainty as stated in the manufacturer's certificate
  • Where stated by the manufacturer, CRMs may be produced by ISO 17034 accredited producers
  • Documentation: Certificate of Analysis, Safety Data Sheet

Purity. Performance. Consistency.

High Purity Laboratory Chemicals

Solvents, reagents and specialty chemicals classified by purity grade — HPLC, LC-MS, GC, ACS, AR/GR, LR and technical.

Row of laboratory solvent bottles with blank labels on a shelf

Solvents

Available in grades with specified UV absorbance and residue specifications, as applicable.

  • Acetonitrile, methanol, water, isopropanol
  • Hexane, dichloromethane, ethyl acetate, toluene
  • Anhydrous and dry solvents (low water content)
  • Deuterated solvents for NMR

Grades & specifications

  • Grades: HPLC, UHPLC, LC-MS, GC / headspace, spectroscopy, ACS, AR, LR, technical
  • Typical specs: UV cut-off, gradient purity, residue on evaporation, water content by KF
  • Pack sizes: 500 mL, 1 L, 2.5 L, 5 L, 20 L, 200 L
  • Documentation: Certificate of Analysis, Safety Data Sheet
Laboratory reagent jars containing coloured salts and powders

Reagents & Salts

Analytical and general purpose reagents for routine wet chemistry.

  • Inorganic salts, oxides and hydroxides
  • Organic reagents and solid chemicals
  • Volumetric solutions and titrants (N/10, N/2, 1N, 0.1M and similar)
  • Buffer capsules, tablets and ready-made buffer solutions
  • Indicators, stains and dyes

Grades & specifications

  • Grades: ACS, AR / GR (analytical reagent), ExtraPure, LR (laboratory reagent), technical
  • Assay ranges vary by product, grade and manufacturer specification
  • Pack sizes: 25 g, 100 g, 250 g, 500 g, 1 kg, 5 kg, 25 kg
High purity acid bottles arranged inside a laboratory fume hood

Specialty & High Purity

Trace-metal acids, ultrapure salts and application-specific chemicals.

  • Trace-metal / ultrapure mineral acids: HNO₃, HCl, H₂SO₄, HF, HClO₄
  • Karl Fischer reagents (volumetric and coulometric)
  • Derivatisation reagents and ion-pair reagents
  • Ultrapure salts for LC-MS mobile phases
  • Silica gel, TLC plates and chromatography media

Grades & specifications

  • Trace metal grades with impurities stated in ppb / ppt
  • Mobile-phase additives at ≥99% LC-MS grade
  • Pack sizes: 100 mL to 5 L for liquids; 100 g to 5 kg for solids

Media, plates and reagents

Microbiology Solutions

Culture media, ready-to-use plates, water testing supplies and molecular reagents, listed by type and application.

Dehydrated culture media powder being weighed in a microbiology laboratory

Dehydrated Culture Media

Powders for in-house preparation of general and selective media.

  • General purpose media: nutrient agar/broth, TSA, TSB
  • Selective and differential media: MacConkey, XLD, SS, Cetrimide
  • Sterility and growth-promotion media: SCDM, FTM
  • Peptones, agar powder, extracts and media supplements

Grades & specifications

  • Pack sizes: 100 g, 500 g, 5 kg
  • Prepared as per label instructions; growth-promotion data as issued by the manufacturer
  • Documentation: Certificate of Analysis, Safety Data Sheet
Stacks of prepared agar petri dishes in a microbiology laboratory

Ready-to-Use Plates & Tubes

Pre-poured plates for environmental monitoring and routine testing.

  • Pre-poured 90 mm plates
  • Contact (RODAC) plates 55 mm for surface monitoring
  • Settle plates for area monitoring
  • Prepared tubes, slants and bottled media

Grades & specifications

  • Formats: 90 mm / 55 mm plates; 10–100 mL bottled media
  • Packed and dispatched in accordance with the manufacturer's specified storage conditions, such as 2–8 °C where stated on the label
  • Batch-wise shelf life as printed on the pack
Membrane filtration apparatus and water sample flasks

Water & Environmental Testing

Media, kits and membranes for potable and waste water analysis.

  • Coliform and E. coli detection media
  • MPN kits and presence/absence broths
  • Membrane filtration discs and pads
  • Heterotrophic plate count and pathogen screening media

Grades & specifications

  • Membrane pore sizes: 0.22 µm and 0.45 µm; 47 mm and 50 mm discs
  • Sterile, individually or bulk packed
  • Available in formats commonly used in water and microbiological testing workflows, including applications referencing IS 1622, subject to product specification and laboratory requirements
Gloved hands pipetting into a rack of PCR tubes

Molecular & Clinical

Extraction kits, PCR consumables and susceptibility testing supplies.

  • DNA / RNA extraction and purification kits
  • PCR master mixes, primers-ready reagents, ladders
  • Antibiotic sensitivity discs and MIC strips
  • Stains, biochemical identification kits and rapid tests

Grades & specifications

  • Kit sizes: 50, 100, 250 preps
  • Storage classes: 2–8 °C or −20 °C as labelled
  • Documentation: Certificate of Analysis, Safety Data Sheet

Class A and Class B, specified clearly

Precision Labware & Glassware

Volumetric and general glassware, filtration media, plasticware and crucibles specified by class, tolerance and material.

Volumetric flasks and a burette on a white laboratory bench

Volumetric Glassware

Class A and Class B calibrated glassware for measurement and titration.

  • Volumetric flasks (Class A / Class B), 5 mL to 2,000 mL
  • Bulb and graduated pipettes (Class A / Class B)
  • Burettes, straight bore and with PTFE stopcock, 10/25/50 mL
  • Measuring cylinders (Class A / Class B), 5 mL to 2,000 mL

Grades & specifications

  • Class A: tighter specified tolerances; calibration/certification availability is manufacturer-specific
  • Class B: tolerances are as specified by the applicable standard and/or manufacturer
  • Calibration marking: TC/IN (to contain) or TD/EX (to deliver) at 20 °C
  • Material: borosilicate 3.3 glass, amber options for light-sensitive work
Borosilicate beakers and conical flasks on a laboratory bench

General Glassware

Borosilicate everyday glassware built for repeated thermal cycles.

  • Beakers (low and tall form), conical and round-bottom flasks
  • Reagent bottles, narrow and wide mouth, clear and amber
  • Test tubes, culture tubes, centrifuge tubes, desiccators
  • Condensers, separating funnels, distillation and extraction assemblies

Grades & specifications

  • Material: borosilicate 3.3 (low expansion) and soda-lime for general use
  • Interchangeable ground joints: 14/23, 19/26, 24/29, 29/32
  • Autoclavable options available; temperature and cycle limitations are as specified by the manufacturer
Filtration funnel with membrane filter discs on a laboratory bench

Filtration Media

Papers, membranes and holders across common pore sizes.

  • Qualitative and quantitative (ashless) filter papers
  • Glass microfibre filters and extraction thimbles
  • Membrane discs: nylon, PTFE, PVDF, cellulose acetate, MCE
  • Syringe filters, filter holders and vacuum assemblies

Grades & specifications

  • Filter paper grades by retention: 2.5, 8, 11, 20, 25 µm equivalents
  • Membrane pore sizes: 0.10, 0.22, 0.45, 0.80, 1.20 µm
  • Disc diameters: 13, 25, 47, 50, 90, 142 mm; sterile and non-sterile
Plastic laboratory storage bottles and porcelain crucibles

Plasticware & Crucibles

Storage, handling and high-temperature ware for daily lab work.

  • Storage bottles, carboys, aspirator bottles and funnels
  • Beakers, measuring cylinders and wash bottles in plastic
  • Pipette tips, tip boxes, micro-centrifuge tubes and racks
  • Crucibles, evaporating dishes, basins and tongs

Grades & specifications

  • Plastic materials: HDPE, LDPE, PP (autoclavable), PMP, PTFE
  • Crucible materials: porcelain, silica, nickel, platinum; sizes 10–100 mL
  • Autoclavable options available; temperature and cycle limitations are as specified by the manufacturer

From column to autosampler

Chromatography & Consumables

Columns, sample preparation media, vials and everyday consumables for HPLC, UHPLC, GC and ion chromatography workflows.

Stainless steel HPLC analytical columns beside a chromatography instrument

HPLC, UHPLC & GC Columns

Analytical, guard and preparative columns across common chemistries.

  • Reversed-phase analytical columns (C18, C8, phenyl, cyano, amino)
  • HILIC, normal-phase and chiral columns
  • Guard columns, cartridges and holders
  • GC capillary and packed columns
  • Ion exchange and size exclusion columns
  • Semi-preparative and preparative columns

Grades & specifications

  • Common dimensions: 50, 100, 150, 250 mm × 2.1, 3.0, 4.6 mm ID
  • Particle sizes: 1.7, 1.8, 2.6, 3.0, 5.0 µm; 100 Å and 300 Å pore sizes
  • GC columns: 15 m, 30 m, 60 m lengths; 0.25 / 0.32 mm ID; 0.25–1.0 µm film
White solid phase extraction cartridges standing in a laboratory rack

Sample Preparation

Extraction, clean-up and filtration media before injection.

  • SPE cartridges and 96-well plates
  • QuEChERS extraction and dispersive clean-up kits
  • Syringe filters in nylon, PTFE, PVDF, PES and MCE
  • Silica gel, alumina and TLC plates
  • Sample concentration and evaporation consumables

Grades & specifications

  • SPE bed weights: 50, 100, 200, 500, 1000 mg; 1, 3, 6, 12 mL barrels
  • Syringe filter diameters: 13, 25, 33 mm; 0.22 µm and 0.45 µm pore sizes
  • TLC plates: silica gel 60 F254, 20 × 20 cm and pre-cut formats
Tray of chromatography autosampler vials with blue screw caps

Vials, Caps & Septa

Autosampler consumables for routine and trace-level analysis.

  • 2 mL screw-neck, crimp-neck and snap-cap vials
  • Clear and amber glass; low-adsorption options where specified by the manufacturer
  • Micro-inserts, shell vials and headspace vials
  • Screw caps, crimp caps and PTFE/silicone septa
  • Storage vials, sample bottles and closures

Grades & specifications

  • Vial capacities: 0.3, 1.5, 2, 4, 10, 20 mL
  • Thread sizes: 8-425, 9-425; crimp 11 mm and 20 mm headspace
  • Septa materials: PTFE/silicone, PTFE/rubber, pre-slit options
Chromatography grade solvent bottles arranged on a laboratory bench

Solvents & Mobile Phase Additives

Chromatography-grade liquids and buffer salts for mobile phases.

  • HPLC, gradient and LC-MS grade solvents
  • HPLC and LC-MS grade water
  • Ion-pair reagents and mobile phase modifiers
  • Buffer salts: ammonium acetate, ammonium formate, phosphates
  • Acids and bases for pH adjustment of mobile phases

Grades & specifications

  • Grades: HPLC, gradient, LC-MS, spectroscopy
  • Pack sizes: 1 L, 2.5 L, 4 L and bulk on request
  • Documentation: Certificate of Analysis, Safety Data Sheet
Laboratory accessories including test tube racks, spatulas and wash bottles

Laboratory Accessories & Consumables

Everyday supplies that keep the bench running.

  • Test tube racks, clamps, stands and tongs
  • Spatulas, scoops, stirring rods and wash bottles
  • Pipette tips, pipettes and tip boxes
  • Weighing boats, weighing papers and sample containers
  • Gloves, tissues, parafilm, labels and general disposables

Grades & specifications

  • Materials: stainless steel, PP, PTFE, PVC and wood as applicable
  • Sterile and non-sterile options where the format allows
  • Bulk and case quantities available on request

Item list, BOQ or tender schedule?

Send the schedule with grades, pack sizes and quantities and we will quote line by line, noting available options where a stated specification cannot be met.

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Rashi Group of Company is an independent reseller and sourcing partner of laboratory materials. We are not an authorised agent or representative of any manufacturer unless expressly confirmed in writing for a specific product or transaction. Product names and trademarks remain the property of their respective owners. Supply is subject to product availability and written quotation/confirmation.