Sodium Benzoate Powder

EP, USP (Tested for Endotoxin & Microbes)

CAS #:


Molecular Formula:



Benzoate of soda, Benzoic acid, sodium salt, Benzoate sodium

Molecular Weight:

144.11 g/mol


Sodium benzoate is an organic sodium salt resulting from the replacement of the proton from the carboxy group of benzoic acid by a sodium ion. It is a tablet, capsule and injectable lubricant used in the pharmaceutical formulations.

Characters Unit Specification
Appearance white or almost white, crystalline powder
Assay % 99,0 – 100,5
Identification A+B complies
Acidity or alkalinity complies
Loss on drying (105°C) % max. 2
Halogenated compounds
-for total chlorine ppm max. 300
Heavy metals ppm max. 10
Total aerobic microbial count cfu/g max. 100
Total yeasts and moulds count cfu/g max. 50
E.coli cfu/g absent in 1g
Pseudomonas aeruginosa cfu/g absent in 1g
Staphylococcus aureus cfu/g absent in 1g
Salmonella cfu/g absent in 25g
Bacterial endotoxin IU/g max. 2,5

Shelf Life/Retest Date: Sodium Benzoate powder can be kept for at least 2 years if stored under recommended conditions.

Storage/Shipping Conditions:

  • Keep container tightly closed in a dry and well-ventilated place.
  • Store at room temperature in the original container.
  • Store away from incompatible materials.
  • Hygroscopic.

Pack Sizes: 5 Kg

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