PROPYL-4-HYDROXYBENZOATE
PROPYL-4-HYDROXYBENZOATE Extra Pure
Confirms to IP, BP, USP
Short Name: PROPYL-4-HYDROXYBENZOATE
Synonym: Propyl paraben
Basic Details
Article No.
LG3848
Grade
Extra Pure
Purity
98%
CAS No.
94-13-3
HS Code
2918.2990
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
6.7
Melting point/ Freezing point [°C]
95 - 98 °C
Auto-ignition temperature [°C]
600°C
Flash point [°C]
180 °C
Vapour pressure mm/Hg
0.67 hPa @ 122°C
Solubility in water [% weight]
Negligible
Chemical Specifications
Appearance
White crystalline powder
Assay (by HPLC)
98.0-102.0%
Solubility
Very slightly soluble in water, freely soluble in alcohol and methanol
Identification
-
By Infrared Absorption
Passes test
Melting range
96 -99°C
Identification (by TLC)
Passes test
Absorbance at 258 nm
0.44 to 0.47
Identification ‘B’
Passes IP test
Appearance of solution
Passes test
Colour of solution
Passes test
Acidity
Passes test
Sulphated ash
Max 0.1%
Related substance (by HPLC)
-
Impurity A
Max 0.5%
Unspecified impurities
Max 0.5%
Total impurities
Max 1.0%
Chlorides
Max 0.05%
Sulphates
Passes test
Loss on drying (at 80°C ; 2 hrs)
Max 0.5%
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338