USD $100.00-150.00 / Kilogram
USD $3.00-10.00 / Kilogram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $10.00-50.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $6.00-9.00 / Gram
USD $3.00-10.00 / Kilogram
high quality s-adenosyl-l-methionine, s-adenosyl methionine, 29908-03-0, c15h24n6o5s gmp manufacturers
same (s-adenosyl-l-methionine)
cas no. 29908-03-0
purity: 98% 99%
coa of specification
total content |
≥98% |
ademetionine |
50.0~53.0% |
identification |
|
chemical reaction |
positive |
ir |
conforms |
retention time of a major peak |
meet the requirements |
clarity of solution |
≤reference solution y1 |
acid value |
1.5~2.5 |
sadenosyl-l-homocystein (hplc) |
≤0.5 |
methithioadenosine(hplc) |
≤1.0% |
adenine(hplc) |
≤0.5% |
s.s isomer(hplc) |
≥62.0% |
butanedisufoinc acid |
46.0~49.0% |
endotoxin |
≤0.3eu/mg |
water content |
≤3.0% |
residue on ignition |
≤0.3% |
heavy metals |
≤10ppm |
appearance |
almost white powder, very hygroscopic |
function:
1 s-adenosyl methionine (sam, same, sam-e) is a coenzyme involved in methyl group transfers. it is made from adenosine triphosphate (atp) and methionine by methionine adenosyltransferase (ec 2.5.1.6). transmethylation, transsulfuration, and aminopropylation are the metabolic pathways that use sam. although these anabolic reactions occur throughout the body, most sam is produced and consumed in the liver.