Niacin Acid/vitamin B3

CAS number: 59-67-6

Molecular formula: C6H5NO2

molecular weight: 123.1094

Chemical structure:

Product name:    Nicotinic Acid
Shelf lifeThree years
Inspection Standard: USP34
ItemsSpecificationsTest methodResults
Assay, %99.0-101.0UV99.7
Identification AConformIRConform

Identification B

(Ratio:A237/A262)

0.46-0.50UV0.47
Loss on drying,%≤ 1.0Air dry oven0.19
Residue on ignition ,%≤0.1

High

temperature

ignition

0.02
Chloride,%≤0.02Colorimetry<0.02
Sulfate,%≤0.02Colorimetry
Heavy metals,%≤0.002Colorimetry
Ordinary impuritiesConformTLCConform
Conclusion : This material complies with USP34