Laboratory Reagent Grade

Reliable High-Purity Chemicals for General Laboratory Applications

Laboratory Reagent (LR) Grade materials from Aladdin Scientific offer general-purpose high purity suitable for routine scientific work in academic, industrial, and R&D environments. While not as stringent as ACS or HPLC-grade reagents, Laboratory Reagent Grade products maintain sufficient purity for analytical procedures, sample preparation, synthesis, and teaching laboratories.

Key Characteristics

· Purity typically ≥95%, with trace impurities controlled for consistent performance in standard lab use.

· Manufactured to support reproducibility and safety across a wide range of chemical and biochemical workflows.

· Supplied with product specifications and Material Safety Data Sheets (MSDS) for transparency and compliance.

· Ideal for use where ultra-trace purity is not critical, such as buffer preparation, pH adjustment, qualitative assays, and general reagent mixing.

Suitable Applications

· Educational and training labs

· General-purpose synthetic chemistry

· Buffer and media preparation

· Titrations, dilutions, pH adjustments

· Non-critical sample workups or washes

Documentation Provided

· MSDS available for all products

· Certificate of Analysis (CoA) available upon request

· Compliance with general laboratory quality standards

Here is the side-by-side comparison table for ACS, AR (Analytical Reagent), HPLC, and LR (Laboratory Reagent) grades. It includes differences in purity, use cases, testing standards, and compatibility.

Attribute	ACS Grade	AR Grade (Analytical Reagent)	HPLC Grade	LR Grade (Laboratory Reagent)
Typical Purity	≥95–99.9%	≥98–99.5%	≥99.9%	≥95%
Primary Use	Analytical chemistry, QC, pharmaceuticals	High-precision chemical analysis	Liquid chromatography with UV detection	General lab use, education, non-critical work
UV Absorbance Control	Moderate to high control	Moderate	Very low absorbance at 190–254 nm	Not controlled
MS/LC Compatibility	Sometimes compatible	Occasionally compatible	May not be MS compatible	Not suitable
Tested Impurities	Strictly defined by ACS standards	Extensively tested	Filtered for particles, UV screened	Basic specification only
Documentation	CoA, ACS compliance documentation	CoA, MSDS	CoA, UV data, MSDS	MSDS, CoA on request
Price Range	$$	$$	$$–$$$	$
Example Applications	Titrations, standards, trace element analysis	Analytical methods, volumetric solutions	Gradient HPLC, reversed-phase chromatography	Buffer prep, teaching, qualitative work

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