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L-Histidine monohydrate monohydrochloride

Cas:
5934-29-2
Molecular Structure:
MDL:
MFCD00151027
Molecular Formula:
C6H9N3O2·HCl·H2O
Molecular Weight:
209.63
Alias:
L-盐酸组氨酸一水物,盐酸组氨酸 L-α-Amino-β-(4-imidazolyl)propionic acid monohydrochloride L-Histidine Hydrochloride Monohydrate H-His-OH.HCl
Product order:
Name Specifications Packing Price Delivery
L-Histidine monohydrate monohydrochloride 98% 5g RMB 27.5 Consulting service
L-Histidine monohydrate monohydrochloride 98% 25g RMB 60.5 Consulting service
L-Histidine monohydrate monohydrochloride 98% 100g RMB 176 Consulting service
L-Histidine monohydrate monohydrochloride 98% 500g RMB 638 Consulting service
Character:
白色结晶或结晶性粉末,无臭,稍苦酸味。易溶于甲酸,溶于水,不溶于乙醇和乙醚。 水中溶解度:169.9 g/l (20 C)
[a]20/D:  9.9° (c=11, 6 N HCl)  
Quality Standard:
外观Appearance                          白色结晶或结晶粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配
纯度Purity                              ≥98.0% (TLC)
水溶解试验Solubility in Water           溶液透明
比旋光度Specific rotation [a]20/D       +9.0 ~ +10.3 °(c=11, 6 N HCl)
重金属Heavy metals (as Pb)              <10 ppm
硫酸盐灰分Sulfated ash                  <0.1 %
其它氨基酸Other amino acids             <0.5 % (TLC)
干燥损失Loss on drying                  ≤2.0 %
SO4                                     < 300 ppm
NH4                                     < 200 ppm
Fe                                      < 10 ppm
pH                                      3 - 5 (2.5% 溶液,25°C) 
Storage:
用途  组织胺(histamine)的前体物质,依靠组氨酸脱羧酶(histidine decarboxylase)。
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