Product Name: Methylliberine

Synonym: 2-Methoxy-1,7,9-trimethyl-7,9-dihydro-1H-purine-6,8-dione

CAS No.: 51168-26-4

Molecular Formula: C9H12N4O3

Molecular Weight: 224.22

Brief Introduction:

Methylliberine, also known as 2-Methoxy-1,7,9-trimethyl-7,9-dihydro-1H-purine-6,8-dione, the CAS number is: 51168-26-4, which is an impurity of caffeine.

Specifications of our Methylliberine:

Appearance	White or off-white crystalline powder
Identification	H-NMR conforms to the Standard
LC	Conforms to the Standard
Methylliberine Assay (HPLC)	Not less than 98.0%
Liberine (HPLC)	Not more than 1.0%
Other impurities (HPLC)	Not more than 1.0%
Residue on Ignition	Not more than 0.5%
Loss on Drying	Not more than 1.0%
Particle Size	95% pass through 80 mesh
Bulk Density	Not less than 0.20 g/mL
Tapped Density	Not less than 0.40 g/mL
Heavy Metals	Not more than 10 ppm
Lead (Pb)	Not more than 0.5 ppm
Cadmium (Cd)	Not more than 0.5 ppm
Mercury (Hg)	Not more than 0.1 ppm
Arsenic (As)	Not more than 0.5 ppm
Total Plate Count	Not more than 1000 CFU/g
Escherichia coli	Negative/10g
Coliforms	Not more than 10 CFU/g
Staphylococcus aureus	Negative/25g
Yeasts & Moulds	Not more than 100 CFU/g
Salmonella	Negative/375g

Packaging:

1kg/Aluminum Foil Bag, 5kg/Carton, 10kg/Carton, 25kg/Fibre Drum or according to the specific requirements from customers.

Storage Conditions:

Preserved in unopened original containers in a cool dry place before using; kept away from direct sunlight, heat and moisture.

Shelf Life:

24 months if stored under above mentioned conditions.