1.04350

L-组氨酸 单盐酸盐 一水合物

for biochemistry

• 同義詞: L-α-氨基-β-（4-咪唑基）丙酸 单盐酸盐
• 經驗公式（希爾表示法）: C₆H₉N₃O₂ · HCl · H₂O
• CAS號碼: 5934-29-2
• 分子量：: 209.63
• Beilstein: 4168261
• MDL號碼: MFCD00151027
• 分類程式碼代碼: 12352209
• 酶委員會索引編號: 211-438-9
• NACRES: NA.21

屬性

• 蒸汽壓力: <1 hPa ( 20 °C)
• 品質等級: 100
• 形狀: crystalline powder
• pH值: 3.5-4.5 (20 °C, 100 g/L in H₂O)
• mp: 254 °C (dec.) (lit.)
• 溶解度: 149.55 g/L
• 密度: 1.49 g/cm³ at 20 °C
• 體積密度: 770 kg/m³
• 儲存溫度: 2-30°C
• SMILES 字串: O.Cl.N[C@@H](Cc1c[nH]cn1)C(O)=O
• InChI: 1S/C6H9N3O2.ClH.H2O/c7-5(6(10)11)1-4-2-8-3-9-4;;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H;1H2/t5-;;/m0../s1
• InChI 密鑰: CMXXUDSWGMGYLZ-XRIGFGBMSA-N

描述

分析報告

Assay (alkalimetric, calculated on dried substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white crystalline powder or colorless crystals
Appearance of solution (50 g/l CO₂-free water): clear and colorless
Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance): +9.2 to +10.6
Sulfate (SO₄): ≤ 0.02 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.01 %
Zn (Zinc): ≤ 0.0005 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Loss on drying (150 °C): 7.0 - 10.0 %

安全資訊

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable