SYNONYM: 1,3,7-Trimethylxanthine
FORMULA: C8H10N4O2
M. W.: 194.1926
CAS NO.: 58-08-2
GRADE: BP2000/USP25
DESCRIPTION: Silky, white
crystals or a white, crystalline powder, SLIGHTLY SOLUBLE IN WATER, ETHANOL,
ACETONE, EASILY SOLUBLE IN HOT WATER OR CHLOROFORM.
SPECIFICATIONS:
|
CHARACTERS |
A WHITE,
CRYSTALLINE POWDER |
|
IDENTIFICATIONS |
POSITIVE
REACTION |
|
ACIDITY (10ml
OF SOLUTION S CONSUMES 0.01mol/l NaOH) |
0.2ml MAX. |
|
APPEARANCE OF
SOLUTION |
CLEAR,
COLORLESS |
|
READILY
CARBONIZABLE SUBSTANCE |
NO MORE THAN
MATCHING FLUID D |
|
OTHER ALKALOIDS |
NO PRECIPITATE
IS FORMED |
|
HEAVY METALS |
10ppm MAX. |
|
SULPHATES |
500ppm MAX. |
|
CHROMATOGRAOPHIC
PURITY |
0.1% MAX. |
|
RELATED
SUBSTANCES |
0.5% MAX. |
|
ORGANIC
VOLATILE IMPURITIES |
MEETS THE
REQUIREMENT |
|
LOSS ON DRYING |
0.5% MAX. |
|
SULPHATED ASH |
0.1% MAX. |
|
MELTING POINT |
235-239℃ |
|
ASSAY |
98.5%-101.0% |
USES:
USDED AS INCITANT
IN MEDICINE OR FOODSTUFF INDUSTRY.
PACKING: PACKED IN 25KG PAPER DRUM.