CAFFEINE ANHYDROUS
CAFFEINE ANHYDROUS AR
Suitable for determination of Serum Bilirubin(Confirm to IP/BP)
Short Name: CAFFEINE ANHYDROUS
Synonym: 1,3,7-Trimethylxanthine; Coffeinum
Basic Details
Article No.
LG1046
Grade
AR
Purity
99%
CAS No.
58-08-2
HS Code
2939.3000
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
6.9
Melting point/ Freezing point [°C]
234 - 236°C
Boiling point [°C]
178°C
Density [g/cm3]
1.23
Solubility in water [% weight]
1 gm in 46 mls water
Partition coefficient Log Pow octanol /water at 20°C
0.07
Chemical Specifications
Appearance
Silky white crystals or crystalline powder; odourless; sublimes readily
Assay (on anhydrous basis)
99.0- 101.5%
Solubility
Sparingly soluble in water, freely soluble in boiling water, slightly soluble in ethanol (96 per cent). It dissolves in concentrated solutions of alkali benzoates or salicylates.
Identification
To comply IP,BP test
Appearance of solution
To comply IP,BP test
Melting point
235 - 237°C
Insoluble matter in water
Max 0.005%
Acidity or alkalinity
To comply IP/BP test
Related Substances
To comply IP,BP test
Sulphate (SO4)
Max 0.05%
Heavy metal (as Pb)
Max 0.002%
Loss on drying ((at 105°C for 1hr)
Max 0.5%
Sulphated ash
Max 0.1%
Copper (Cu)
Max.0.0002%
Iron (Fe)
Max.0.0002%
Lead (Pb)
Max.0.0002%
Zinc (Zn)
Max.0.0002%
Theobromine (C7H8N4O2)
Max.0.2%
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
UN No.
1544
IMCO Class No.
6.1
Packing Group
III
Hazardous Statement
H302
Precaution Statement
P301 + P312 + P330