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Vitamin U is a term introduced in the early 1950s to identify a compound in cabbage juice. Examples of methionine derivatives often called vitamin U include S-methylmethionine (SMM), methylmethionine sulfonium (SMM), and 3-amino-3-carboxypropyl dimethylsulfonium. Vitamin U is available not only as a kind of bulk raw materials for dietary supplements but also found naturally in various foods, particularly cruciferous vegetables like cabbage, broccoli, Brussel sprouts, and kale.

Synonym

Methyl-Methioninesulphoniumchloride; Dl-Methylmethioninesulfoniumchloride; Dl-Methioninemethylsulfoniumchloride; Dl-(3-Amino-3-Carboxyprchemicalbookopyl)Dimethylsulfoniumchloride; S-Methylmethioninesulfoniumchloride; S-Methyl-Dl-Methionine-Sulfoniumchloride; Vitaminuchloride; Vitamin U

CAS No.: 3493 12 7

EC No.: 222-484-4

MF: C6H14ClNO2S

MW: 199.7
Parameters of DL Methionine Methylsulfonium Chloride, Vitamin U
ItemSpecificationResults
AppearanceWhite Crystalline Powder, SmellyConforms
Melting Point134-137℃Conforms
Identification1 2 Chemical Reaction, Positive ReactionConforms
Heavy Metals≤20PPMConforms
Methanol Residue≤0.3%Conforms
Residue On Ignition≤0.2%0.1%
Loss On Drying≤3.0%1.8%
Assay(Calculated On The Anhyrrous 
Substance)≥98.0%99.1%
Aerobic Microbial Count<1000CFU/g<10CFU/g
Yeast&Mold<1000CFU/g<10CFU/g
E.ColiNegativeNegative

Packing:
100g/bag; 500g/bag; 1kg/bag; 25kg/drum
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Recommended storage method:
Store in a cool, dry and ventilated place.
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Recommended storage temperature:
2 - 8 °C

Product usage:
API raw materials for gastrointestinal drugs

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