DL-Methionine MethylsulfoniuM chloride, Vitamin U CAS NO.3493-12-7

Name: DL-Methionine MethylsulfoniuM chloride, Vitamin U
SKU: 3493-12-7
Availability: InStock

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Tests Items	Requirements	Results
Description	Shuold be white crystalline powder,special smell.Easily lead in the air humidity, light and heat instability	White crystalline powder,special smell.Easily lead in the air humidity, light and heat instability
m.p.	Should be 134－137℃,melting with decomposition	135－137℃,melting with decomposition
Identification
(1)Chemical reaction	Should be positive reaction	conforms
(2)Chemical reaction	Should be positive reaction	conforms
Test
Loss on drying	≤2.1%	0.4%
Residue on ignition	≤0.2%	0.1%
Heavy Metal	≤20ppm	＜20ppm
Microbial Limit
Bacterial count	≤ 1000cfu /g	＜10cfu/g
Yeast and mold count	≤100cfu/g	＜10cfu/g
E.coli	Shouldn’t found	Not found
Assay	It should contain not less than 99.0% of （C₆H₁₄ClNO₂S）,calculated on dry substance.	100.9%