Propyl 4-hydroxybenzoate

Propyl 4-hydroxybenzoate
Product Id:
11214363916
Products Name:
Propyl 4-hydroxybenzoate
CAS NO:
94-13-3
Product category:
Preservative
Remarks:
[Molecular Weight]: 180.20

Description

[Chemical Name]: Propyl 4-hydroxybenzoate
[Trade Name]: Nipagin p
[Molecular Formula]: C10H12O3
[Molecular Weight]: 180.20
[CAS#]: 94-13-3
[Properties]: white crystal, easily soluble in alcohols and aethers; almost insoluble in water; relative density (d4102 )1.0630, refractive index (nD102)1.5050.

[Use]: Mainly used as antiseptic of food, cosmetics, drugs and feed.

[Functions]:
Propylparaben is the propyl ester of p-hydroxybenzoic acid, occurs as a natural substance found in many plants and some insects, although it is manufactured synthetically for use in cosmetics,
pharmaceuticals and foods, according to Wikipedia. It is used as a preservative for its anti-fungal and anti-microbial properties to extend the shelf life of beauty and cosmetic products. It is considered non-toxic, non-sensitizing and non-irritating at .05 to 1% concentrations.

[Packing]: 25kgs plastic woven bag, or other packing to be negotiated.
[Specification]:
Item
Index
GB 8851-1988
B.P 98
USP24-NF19
Appearance
/
colorless crystal or white crystalline powder
/
Assay ( in dry basis) % ≥
99.0
99.0-100.5
99.0-100.5
M.P. °C
95-98
95-98
95-98
Acidity
qualified
qualified
qualified
Sulphates (SO42-) % ≤
0.024
/
/
Heavy metal (Pb) % ≤
0.001
/
/
Arsenic (AS) % ≤
0.0001
/
/
Drying Loss % ≤
0.50
0.50
0.50
Residue on ignition % ≤
0.05
0.1
0.05
4-Hydroxybenzoic acid and salicylic acid
qualified
/
/
Identification test
/
/
qualified
Relevant substances
/
qualified
/
Appearance of solution
/
clear and transparent
/
Organic volatile matter
/
/
qualified