Caffeine Anhydrous
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Product Description
Product
Caffeine Anhydrous
CAS
58-08-2
Formula
C8H10N4O2
Synonym
1,3,7-Trimethylxanthine; 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-
Typical Product Specifications
Density
1.23
Slightly Soluble
in water, alcohol, ether
Freely Soluble
in chloroform
Heavy Metals
<= 10 ppm
Chromatographic Purity
<= 0.1%
Organic Volatile Impurities
Meets the requirements
Identification
Positive Reaction
Other Alkaloids
No precipitate is formed
Appearance of Solution
Clear and Colorless
Loss on Drying
<= 0.5%
Sulphated Ash
<= 0.1%
Readily Carbonizable Substances
No more color than matching fluid D
Sulfate
<= 500 ppm
Melting Point
234° ~ 239°C
Acidity
10 ml of solution S consumes 0.01 mol/l NaOH < 0.2 ml
Assay
98.5 - 101.5%
pH
neutral
Odor
wh. fleecy mass, powd. or need., odorless, bitter taste
Molecular weight
194.22
Class
Caffeine Anhydrous
Product Description
Product
Caffeine Anhydrous
CAS
58-08-2
Formula
C8H10N4O2
Synonym
1,3,7-Trimethylxanthine; 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-
Typical Product Specifications
Density
1.23
Slightly Soluble
in water, alcohol, ether
Freely Soluble
in chloroform
Heavy Metals
<= 10 ppm
Chromatographic Purity
<= 0.1%
Organic Volatile Impurities
Meets the requirements
Identification
Positive Reaction
Other Alkaloids
No precipitate is formed
Appearance of Solution
Clear and Colorless
Loss on Drying
<= 0.5%
Sulphated Ash
<= 0.1%
Readily Carbonizable Substances
No more color than matching fluid D
Sulfate
<= 500 ppm
Melting Point
234° ~ 239°C
Acidity
10 ml of solution S consumes 0.01 mol/l NaOH < 0.2 ml
Assay
98.5 - 101.5%
pH
neutral
Odor
wh. fleecy mass, powd. or need., odorless, bitter taste
Molecular weight
194.22
Class
