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D-Histidine (CAS # 351-50-8)

Chemical Property:

Molecular Formula C6H9N3O2
Molar Mass 155.15 Nws
Qhov ntom 1.3092 (zeeg)
Melting Point 280 ° C
Boling Point 278.95 ° C (kwv yees kwv yees)
Kev sib hloov tshwj xeeb (α) -12 º (c = 11, 6N HCl)
Flash Point 231.3°C dej
Dej Solubility 42 g / L (25 ºC)
Solubility 1 M HCl: soluble
Vapor Siab 3.25E-09mmHg ntawm 25 ° C
Qhov tshwm sim Dawb siv lead ua
Xim Dawb
Merck 14, 4720 ib
BRN 84089 ua
pKa 1.91 ± 0.10 (Tshaj tawm)
Kev cia khoom Khaws nyob rau hauv qhov chaw tsaus, inert cua, chav tsev kub
Refractive Index -13 ° C = 11,6 mol / L
MDL TIAB SA 00065963
Physical thiab Chemical Properties Melting Point: 254

Product Detail

Khoom cim npe

Hazard Cov Cim Xn – Ua phem
Kev nyab xeeb piav qhia S22 - Tsis txhob nqus plua plav.
S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
WGK Germany 3
TSCA Yog lawm
HS Code 29332900 ib

 

Taw qhia

 

D-histidine muaj ntau lub luag haujlwm tseem ceeb hauv cov kab mob muaj sia. Nws yog ib qho tseem ceeb amino acid uas yog ib qho tseem ceeb tivthaiv uas yuav tsum tau rau kev loj hlob thiab kho cov leeg nqaij. D-histidine tseem muaj cov txiaj ntsig ntawm kev txhim kho cov leeg nqaij thiab kev ua siab ntev thiab txhawb kev tsim cov protein. Nws yog dav siv hauv kev tawm dag zog thiab kev ua kis las ntxiv.

 

Kev npaj ntawm D-histidine feem ntau yog los ntawm cov tshuaj synthesis lossis biosynthesis. Txoj kev chiral synthesis feem ntau yog siv rau hauv cov tshuaj synthesis, thiab cov tshuaj tiv thaiv kab mob thiab kev xaiv catalyst yog tswj, kom cov khoom synthesis tuaj yeem tau txais histidine hauv D-stereo configuration. Biosynthesis siv cov txheej txheem metabolic ntawm cov kab mob los yog cov poov xab los ua ke D-histidine.

Raws li kev noj haus ntxiv, qhov ntau npaum ntawm D-histidine feem ntau muaj kev nyab xeeb. Yog tias cov koob tshuaj pom zoo dhau los lossis siv cov koob tshuaj ntev ntev, nws yuav ua rau muaj kev phiv xws li plab hnyuv, mob taub hau, thiab ua xua. Tsis tas li ntawd, D-histidine yuav tsum tau siv nrog ceev faj hauv qee cov neeg, xws li cov poj niam cev xeeb tub lossis lactating poj niam, cov neeg mob lub raum tsis txaus, lossis phenylketonuria.

 


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