Thiamine hydrochloride
Molecular Formula:
C12H18Cl2N4OS
Molecular Weight:
337.27
Alias:
硫胺素鹽酸鹽;維生素B1鹽酸鹽;鹽酸噻胺;硫胺鹽酸鹽;維生素B1;鹽酸硫胺素;維生素B1鹽酸;輔羧酶(四水)
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
Thiamine hydrochloride |
99.7% |
50mg |
RMB 700 |
Consulting service |
Character:
白色至黃白色細(xì)小結(jié)晶,或結(jié)晶性粉末,略有米糖似的特異臭,味苦,易吸濕,干燥品在空氣中迅速吸收約4%的水分。本品1g約可溶于是1mL水和100mL乙醇中,可溶于甘油而不溶于乙醚和苯。熔點(diǎn)約248℃(有分解)。在酸性條件下對(duì)熱較穩(wěn)定,pH等于3時(shí),即使高壓蒸煮至140℃1h,破壞亦很少。但在中性及堿性溶液中易分解,若在pH大于7的情況下煮沸,則大部分或全部破壞,甚至在室溫下貯存亦可逐漸破壞。氧化或還原作用均可使其失去活性。
由丙烯腈經(jīng)過縮醛物、乙酰嘧啶、硝酸硫胺,再轉(zhuǎn)化成鹽酸硫胺。也可由乙-甲基呋喃和丁烯腈等,或由β-乙氧基丙酸乙酯和甲酸乙酯等合成。
Quality Standard:
熔點(diǎn) 250 °C (dec.)(lit.)
FEMA 3322
儲(chǔ)存條件 2-8°C
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