品 名:DL-蛋氨酸
又 名:DL-甲硫氨酸
英文名:DL-Methionine 可聯(lián)系河南鄭州席經(jīng)理15936260950
分子式:C5H11NO2S
分子量:149.21
法定編號(CAS):59-51-8
性 狀:DL-蛋氨酸為白色薄片狀結(jié)晶或結(jié)晶性粉末。有特殊氣味。味微甜。熔點(diǎn)281℃(分解)。10%水溶液的PH值5.6~6.1。無旋光性。對熱及空氣穩(wěn)定。對強(qiáng)酸不穩(wěn)定,可導(dǎo)致脫甲基作用。溶于水(3.3g/100ml,25℃)、稀酸和稀堿溶液。極難溶于乙醇,幾乎不溶于乙醚。
用 途:營養(yǎng)增補(bǔ)劑。人體必需氨基酸之一。
包 裝:25kg/桶
質(zhì)量標(biāo)準(zhǔn):EP4、AJI92、USP24、FCCIV
白色片狀結(jié)晶粉末
White crystalline power
溶液澄清度
Clear and colorless
灼燒殘?jiān)?/span>
Residue on ignition
DL-Methionine
Molecular Formula: C5H11NO2S
Molecular Weight:149.21
CAS:59-51-8
DESCRIPTION: Flake white crystal or crystalline powder. With special smell. Slightly sweet flavor. Melting point is 281 ℃ (decomposition). 10% aqueous solution of the PH value of 5.6 ~ 6.1. No optical activity.
It is stable to thermal and air. Instability to acid and can lead to demethylation. Soluble in water (3.3g/100ml, 25 ℃), acid and dilute alkaline solution. Extremely difficultly dissolve ethanol, practically insoluble in ether.
APPLICATION: nutritional supplements. One essential amino acids.
Packing: 25kg / barrel
Quality Standard: EP4, AJI92, USP24, FCCIV