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Histidin

L-Histidine Struktur
71-00-1
CAS-Nr.
71-00-1
Bezeichnung:
Histidin
Englisch Name:
L-Histidine
Synonyma:
HISTIDINE;HIS;H-HIS-OH;L-HIS;L-HISTIDINE BASE;L-His-OH;L-Histidin;(S)-2-aMino-3-(1H-iMidazol-4-yl)propanoic acid;Histidin;L-Hisidine
CBNumber:
CB6705020
Summenformel:
C6H9N3O2
Molgewicht:
155.15
MOL-Datei:
71-00-1.mol

Histidin Eigenschaften

Schmelzpunkt:
282 °C (dec.)(lit.)
alpha 
12.4 º (c=11,6N HCl)
Siedepunkt:
278.95°C (rough estimate)
Dichte
1.3092 (rough estimate)
Brechungsindex
13 ° (C=11, 6mol/L HCl)
FEMA 
3694 | L-HISTIDINE
storage temp. 
2-8°C
Löslichkeit
H2O: 50 mg/mL
Aggregatzustand
powder
pka
1.8(at 25℃)
Farbe
White to off-white or pale yellow
Säure-Base-Indikators(pH-Indikatoren)
7 - 8 at 15.5 g/l at 25 °C
PH
7.0-8.0 (25℃, 0.1M in H2O)
Optische Aktivität
[α]20/D 39±1°, c = 2% in H2O
Wasserlöslichkeit
41.6 g/L (25 ºC)
maximale Wellenlänge (λmax)
λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05
JECFA Number
1431
Merck 
14,4720
BRN 
4673585
Stabilität:
Stable. Incompatible with strong oxidizing agents.
InChIKey
HNDVDQJCIGZPNO-YFKPBYRVSA-N
CAS Datenbank
71-00-1(CAS DataBase Reference)
NIST chemische Informationen
L-Histidine(71-00-1)
EPA chemische Informationen
L-Histidine (71-00-1)

Sicherheit

Kennzeichnung gefährlicher Xn
R-Sätze: 22-36/37/38
S-Sätze: 24/25-36/37-26-22
WGK Germany  2
RTECS-Nr. MS3070000
10-23
TSCA  Yes
HS Code  29332990
Giftige Stoffe Daten 71-00-1(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: > 5110 mg/kg

Histidin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S22:Staub nicht einatmen.

Beschreibung

White, odorless crystals or crystalline powder having a slightly bitter taste. It is soluble in water, very slightly soluble in alcohol, and insoluble in ether. It melts with decomposition between about 277° and 288°C.

Chemische Eigenschaften

L-Histidine is an odorless powder with slightly bitter taste

Occurrence

Reported found in water bread, macaroni, egg noodles, corn flakes, corn grits, oatmeal, wheat bran, wheat flakes, shredded wheat, barley, brown rice, rye flour, whole grain wheat flour, buttermilk, blue cheese, cheddar cheese, cottage cheese, cream cheese, Parmesan cheese, bacon, cured ham, frankfurters, pork sausage, canned red kidney beans, canned sweet corn, canned peas, canned lima beans, canned potatoes, almonds, cashews, peanuts, dates, beef, lamb, veal, chicken, turkey and other natural sources

Verwenden

L-Histidine is an essential amino acid for human development which the body cannot produce on its own. L-Histidine is one of the 22 proteinogenic amino acids. L-Histidine precursor to histamine (H4365 00) and a component of carnosine.

Definition

ChEBI: The L-enantiomer of the amino acid histidine.

läuterung methode

A likely impurity is arginine. S-Histidine is adsorbed from aqueous solution onto a Dowex 50-H+ ion-exchange resin, washed with 1.5M HCl (to remove other amino acids), then eluted with 4M HCl as the dihydrochloride. This purified dihydrochloride (see below) is finally dissolved in water, the pH adjusted to 7.0, and the free zwitterionic base crystallises out on addition of EtOH. Its solubility in H2O is 4.2% at 25o. [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 1971-1993 1961, Beilstein 25 III/IV 4344.]

Histidin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Histidin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 700)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 16704 58
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37122233 +86-13795318958
Candy@bj-chem.com China 291 55
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 22021 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075
jack.li@time-chemicals.com China 1809 55
Shanghai Yingrui Biopharma Co., Ltd.
+86-21-33585366 E-mail:sales03@shyrchem.com
sales03@shyrchem.com CHINA 739 60
ATK CHEMICAL COMPANY LIMITED
21-51619050
ivan@atkchemical.com China 27080 60
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418679
info@tnjchem.com China 2995 55
Shanxi Naipu Import and Export Co.,Ltd
+86-13734021967 +8613734021967
kaia@neputrading.com China 1011 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29960 58

71-00-1(Histidin)Verwandte Suche:


  • (s)-1h-imidazole-4-propanoicaci
  • (s)-4-(2-amino-2-carboxyethyl)imidazole
  • (s)-alpha-amino-1h-imidazole-4-propanoicacid
  • 1H-Imidazole-4-propanoic acid, alpha-amino-, (S)-
  • 3-(1h-imidazol-4-yl)-l-alanin
  • 4-(2-Amino-2-carboxyethyl)imidazole
  • L-(+)-HISTIDINE
  • L-HISTIDINE
  • L-3-IMIDAZOL-4-YLALANINE
  • L-2-AMINO-3-(4-IMIDAZOLYL)PROPIONIC ACID
  • L-ALPHA-AMINO-4(OR 5)-IMIDAZOLE-PROPIONIC ACID
  • HISTIDINE, L-
  • H-L-HIS-OH
  • FEMA 3694
  • (S)-2-AMINO-3-(4-IMIDAZOLYL)PROPIONIC ACID
  • (S)-2-Amino-3-(4-imidazolyl)propionic acid~H-His-OH
  • L-HIS = H-His-OH
  • L-Histidine,free base
  • L-HISTIDINE FREE BASE CELL CULTURE*TESTE D
  • L-HISTIDINE HYDROCHLORIDE HISTAMINE PREC URSOR
  • L-HISTIDINE-15N3 95 ATOM % 15N
  • L-HISTIDINE (USP/EP)
  • L-HISTIDINE, REAGENTPLUS TM, >= 99%
  • L-HistidineForBiochemistry99+%
  • 2-Amino-3-(1H-imidazol-5-yl)-propanoic acid
  • L-alpha-Amino-beta-imidazolepropionic Acid
  • L-Histdine
  • 2-Amino-3-(1H-imidazol-4-yl)-propionicacid
  • L-Histidine,(S)-2-Amino-3-(4-imidazolyl)propionic acid
  • L-Histidine, extra pure, USP, BP, Ph Eur
  • L-HISTIDINE BASE RESEARCH GRADE
  • L-Histidine (200 mg)
  • MultiPharM (TM) L-Histidine, USP, Ph Eur
  • L-Histidine, 98% 25GR
  • (S)-α-AMino-1H-iMidazole-4-propanoic Acid
  • 1448: PN: EP2071334 SEQID: 1532 claiMed protein
  • 1448: PN: WO2009077864 SEQID: (S)-1H-IMidazole-4-alanine
  • 3-(1H-IMidazol-4-yl)-L-alanine
  • NSC 137773
  • PN: WO2009046220 SEQID: 343 claiMed sequence
  • AKR1B10 human
  • AKR1B11
  • Aldo-keto reductase family member B10
  • ALDRLn
  • L-Histidine Vetec(TM) reagent grade, >=99%
  • DEVELOPER SOLUTION PHE
  • FIXING SOLUTION PHE
  • LANTHANUM CHLORIDE SOLUTION PHE
  • L-Histidine(monoclinicform)
  • s-histidine
  • L-HISTIDINE FOR BIOCHEMISTRY
  • L-Histidine,98+%
  • alpha-amino-4(or5)-imidazolepropionicacid
  • Anti-rheuma
  • Glyoxaline-5-alanine
  • L-(+)-Histidine(orthorhombicform)
  • L-2-Amino-3-imidazolylpropionicacid
  • L-a-Amino-1H-imidazole-4-propanoicacid
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