Description

Analytical Reagents Supplier — AR, LR & HPLC Grade Laboratory Chemicals for QC, R&D and Testing Labs

Analytical reagents form the foundational consumable layer of every quality control laboratory, research facility, and testing institution worldwide. These are chemicals manufactured to exacting purity specifications that ensure reproducible analytical results across titrations, spectrophotometric assays, chromatographic separations, and gravimetric determinations. The purity hierarchy for laboratory chemicals follows a well-defined classification: Guaranteed Reagent (GR/AR) grade with impurity levels tightly controlled to 0.01–0.5% depending on the reagent; Laboratory Reagent (LR) grade with broader impurity tolerances suitable for general-purpose laboratory work; HPLC grade with ultra-low UV-absorbing impurities for liquid chromatography applications; and ACS/Extra Pure grade meeting American Chemical Society specifications for standardized analytical methods. For laboratory managers, procurement heads in pharmaceutical companies, and testing laboratory operators, the consistency of analytical reagent quality directly governs the reliability of every test result the lab produces. A single contaminated reagent batch can invalidate weeks of analytical work and trigger costly re-testing cycles. Davar ChemTech supplies a comprehensive portfolio of analytical reagents across all grade classifications, with each product accompanied by a detailed Certificate of Analysis specifying assay value, impurity profile, and compliance with the relevant pharmacopoeial or society specification (IP, BP, USP, ACS, Merck equivalent).

Key Technical Features

• AR grade reagents with assay purity ≥ 99.0–99.9% (reagent-specific) for quantitative analytical work
• HPLC grade solvents and reagents with UV cut-off specifications and sub-ppm particulate levels for chromatography
• LR grade chemicals for qualitative analysis, teaching laboratories, and general-purpose applications at economical pricing
• ACS grade reagents meeting American Chemical Society specifications for standardized analytical methods
• Full Certificate of Analysis with assay, heavy metals, chloride, sulfate, iron, and residue-on-ignition parameters
• Available in 100 ml, 500 ml, 1L, 2.5L, and 5L pack sizes in amber and clear glass bottles with tamper-evident seals

Industrial Applications

In pharmaceutical quality control, analytical reagents are not merely chemicals — they are the reference standards against which every product batch is judged for compliance with pharmacopoeial specifications. The Indian Pharmacopoeia (IP), British Pharmacopoeia (BP), and United States Pharmacopeia (USP) each specify the grade and purity requirements for reagents used in their monograph methods. For example, volumetric analysis of aspirin content requires AR grade sodium hydroxide of precisely known normality, while HPLC analysis of a multi-component formulation demands HPLC grade acetonitrile with a UV absorbance below 0.01 AU at the detection wavelength to avoid baseline interference. In environmental testing laboratories, analytical reagents are consumed in high volumes for routine parameter testing — COD analysis requires potassium dichromate of AR grade, BOD testing needs dilution water prepared with reagent-grade chemicals to ensure blank DO depletion stays within the prescribed 0.2 mg/L limit, and heavy metal analysis by AAS or ICP-MS demands acid blanks prepared from ultra-high-purity reagents to achieve detection limits in the parts-per-billion range. The research and development sector demands reagents with consistent batch-to-batch quality, particularly in method development and validation where reagent impurities can mask or exaggerate analytical signals, leading to false conclusions about method performance characteristics.

Technical Specifications

Storage, Handling & Safety

Analytical reagents span the full hazard spectrum depending on the chemical — from relatively benign substances (glycerol, sodium chloride) to highly corrosive (concentrated acids), toxic (cyanide reagents), and flammable (organic solvents) materials. Always consult the product-specific Safety Data Sheet (SDS) before handling. As a general practice, wear appropriate PPE — lab coat, safety goggles, and nitrile gloves for routine handling of most reagents. Use fume hoods for volatile, toxic, or corrosive reagents. Store according to compatibility — segregate acids from bases, oxidizers from flammables, and light-sensitive reagents in amber bottles. Maintain a chemical inventory register and dispose of expired or degraded reagents through authorized hazardous waste channels. Never return unused reagent to the original container — this is the single most common cause of reagent contamination in laboratories.

Supply Capability & Distribution Strength

Davar ChemTech supplies analytical reagents to QC laboratories, testing institutions, pharmaceutical companies, and research organizations across India from our Vadodara distribution center. Our reagent portfolio covers over 500 individual chemicals across AR, LR, HPLC, ACS, and Extra Pure grades, with high-demand items maintained in ready stock for immediate dispatch. We serve pharmaceutical QC labs in Hyderabad, Mumbai, Ahmedabad, and Bangalore; food testing laboratories across all major metros; environmental testing labs contracted to municipal and industrial effluent monitoring programs; and academic research institutions at universities and CSIR laboratories. Standard pack sizes (500 ml, 1L, 2.5L) are dispatched within 2–3 working days for Gujarat and Maharashtra and 4–6 working days for other states. Custom bulk orders and consignment stock arrangements are available for high-volume laboratory consumers. Full COA documentation is provided with every delivery.

Get in Touch

Laboratory results are only as reliable as the reagents behind them. Davar ChemTech supplies over 500 analytical reagents across AR, LR, HPLC, and ACS grades — with guaranteed COA and batch traceability for every bottle. Whether you manage a pharmaceutical QC lab, a testing institution, or a research facility, our team can help streamline your reagent procurement with competitive pricing and dependable supply schedules. Contact us for product catalogs, grade selection guidance, or to set up a standing order for your lab.