USD $10.00-90.00 / Kilogram
USD $1.00-10.00 / Kilogram
iso9001 certified manufacturer
quality: adopting fermentation technology to assure the high quality. no-animal raw material
price: offering the best price during the suppliers in china.
rich material and energe make us control the cost effectively
service: reponse inquiry in 24 hours. fast delivery
certificates:we can offer all kinds of certificates that you need for importing. such as: iso9001, gmp,kosher ,halal etc
description:
abbreviation: |
l-his hcl h2o |
cas number: |
5934-29-2 |
conforms to: |
aji, ep |
chemical name: |
(2)-2-amino -1h-imidazole-4 -propionic acid monohydrochloride monohydrate |
chemical formula: |
c6h9n3o2·hcl·h2o |
molecular weight: |
209.63 |
nitrogen content: |
0.2004 |
assay: |
98.5 to 101.0% |
solubility: |
freely soluble in water |
description: |
white crystals or crystalline powder; slightly acid and bitter taste |
l-histidine is one of the 10 essential amino acids for infants. most lists of amino acids classify l-histidine as an essential amino acid; however, it has never been clear if l-histidine is an essential amino acid for adults. even though l-histidine is synthesized adult human tissues, sufficient quantities may not be made to meet the physiological requirements imposed by certain stress or disease situations.
applications:
l-histidine plays a key role in production of red and white blood cells. it has been reported that rheumatoid arthritis sufferers have abnormally low blood levels of l-histidine. a pilot clinical study with ra patients show mixed results but still enough to warrant further research.
l-histidine monohydrochloride monohydrate is manufactured by neutralizing l-histidine with hydrochloric acid.
specifications:
item |
specification( aji92) |
results |
description |
white crystals or crystalline powder
powdercrystalline |
conforms |
identification |
as per aji92 |
meet the requirements |
state of solution (transmittance) |
clear and colorless not less than 98.0% |
98.5% |
specific rotation [α]d20 |
+8.9°to +9.5° |
+9.1° |
chloride(cl) |
16.66% to 17.08% |
16.8% |
sulfate(so4) |
not more than 0.02% |
less than 0.02% |
ammonium |
not more than 0.02% |
less than 0.02% |
iron(fe) |
not more than 10ppm |
less than 10ppm |
heavy metals(pb) |
not more than 10ppm
|
less than 10ppm
|
arsenic |
not more than 1ppm |
less than 1ppm |
other amino acids |
conforms |
conforms |
loss on drying |
not more than 0.20% |
0.14% |
residue on ignition (sulfated) |
not more than 0.10% |
0.04% |
assay |
99.0% to 101.0% |
99.48% |
ph |
3.5 to 4.5 |
4.0 |