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L-组氨酸,L-Histidine;for biochemistry, 99.0-101.0%

别名:(S)-2-氨基-3-(4-咪唑基)丙酸;NSC 137773;(S)-2-Amino-3-(4-imidazolyl)propionic acid

CAS号 71-00-1 经验分子式(希尔表示法) C6H9N3O2 分子量 155.15 Beilstein/REAXYS Number 84088 MDL number MFCD00064315 EC Index Number 200-745-3
货号(SKU): 1.04351
CAS号: 71-00-1
MDL号: MFCD00064315
增值税发票 √ 免费货运 [顺丰 联邦] √
¥625.16

产品描述

Biochem/physiol Actions

组胺的前体,经组氨酸脱羧酶作用可生成组胺。

Analysis Note

Assay (acidimetric, calculated on dried substance): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine-crystalline powder or colorless crystals
Appearance of solution (50 g/l; water): clear and colorless
Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance): +11.4 to +12.4
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 ppm
Heavy metals (as Pb): ≤ 10 ppm
As (Arsenic): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
K (Potassium): ≤ 5 ppm
Mg (Magnesium): ≤ 5 ppm
Na (Sodium): ≤ 100 ppm
Zn (Zinc): ≤ 5 ppm
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.5 %
Loss on drying (105 °C; 3 h): ≤ 0.2 %

性质

Quality Level100
potency>5110 mg/kg LD50, oral (Rat)
pH7.7 (20 °C, 10 g/L in H2O)
mp282 °C (dec.) (lit.)
solubility38.2 g/L
bulk density430 kg/m3
SMILES stringN[C@@H](Cc1c[nH]cn1)C(O)=O
InChI1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChI keyHNDVDQJCIGZPNO-YFKPBYRVSA-N
storage conditionsStore at +5°C to +30°C.


安全信息

个人防护装备 EyeshieldsGlovestype N95 (US)
RIDADR NONH for all modes of transport
WGK德国 WGK 1
商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 190 | 欧洲Eur. ≥ 66 | 東京Tokyo ≥ 82 | 香港与北京 ≥ 55
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