L-(-) 히스티딘
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L-(-) 히스티딘 속성
- 녹는점
- 282 °C (dec.)(lit.)
- 알파
- 12.4 º (c=11,6N HCl)
- 끓는 점
- 278.95°C (rough estimate)
- 밀도
- 1.3092 (rough estimate)
- 굴절률
- 13 ° (C=11, 6mol/L HCl)
- FEMA
- 3694 | L-HISTIDINE
- 저장 조건
- 2-8°C
- 용해도
- H2O: 50 mg/mL
- 물리적 상태
- powder
- 산도 계수 (pKa)
- 1.8(at 25℃)
- 색상
- White to off-white or pale yellow
- pH 범위
- 7 - 8 at 15.5 g/l at 25 °C
- 냄새
- odorless
- 수소이온지수(pH)
- 7.0-8.0 (25℃, 0.1M in H2O)
- optical activity
- [α]20/D 39±1°, c = 2% in H2O
- ?? ??
- odorless
- 수용성
- 41.6 g/L (25 ºC)
- 최대 파장(λmax)
- λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05
- Merck
- 14,4720
- JECFA Number
- 1431
- BRN
- 4673585
- 안정성
- Stable. Incompatible with strong oxidizing agents.
- InChIKey
- HNDVDQJCIGZPNO-YFKPBYRVSA-N
- LogP
- -1.27
- CAS 데이터베이스
- 71-00-1(CAS DataBase Reference)
- NIST
- L-Histidine(71-00-1)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 22-36/37/38 | ||
| 안전지침서 | 24/25-36/37-26-22 | ||
| WGK 독일 | 2 | ||
| RTECS 번호 | MS3070000 | ||
| F 고인화성물질 | 10-23 | ||
| TSCA | Yes | ||
| HS 번호 | 29332990 | ||
| 유해 물질 데이터 | 71-00-1(Hazardous Substances Data) | ||
| 독성 | LD50 orally in Rabbit: > 5110 mg/kg | ||
| 기존화학 물질 | KE-19948 |
L-(-) 히스티딘 C화학적 특성, 용도, 생산
개요
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.화학적 성질
L-Histidine is an odorless powder with slightly bitter taste출처
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 sources용도
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.정의
ChEBI: The L-enantiomer of the amino acid histidine.Purification Methods
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.]L-(-) 히스티딘 준비 용품 및 원자재
원자재
말토덱스트린
히스타민
Soy bean Isoflavone Isoflavone 10-40%
L-글루타민산
AMBERLITE(R) IRC-50
Α-PROTEIN
Hydrolyzate
2-MERCAPTO-L-HISTIDINE
L-카노신
준비 용품
L-(-) 히스티딘 공급 업체
글로벌( 782)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Vertexyn (Nanjing) Bioworks Co., Ltd. | +86-025-58822206 +8617302513087 |
sales@vertexynbio.com | China | 28 | 58 |
| Henan DaKen Chemical CO.,LTD. | +86-371-66670886 |
info@dakenchem.com | China | 18729 | 58 |
| Shanghai Bojing Chemical Co.,Ltd. | +86-86-02137122233 +8613795318958 |
bj1@bj-chem.com | China | 296 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21975 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 |
jack.li@time-chemicals.com | China | 1807 | 55 |
| Shanghai Yingrui Biopharma Co., Ltd. | +86-21-33585366 - 03@ |
sales03@shyrchem.com | CHINA | 738 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 31969 | 60 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 |
info@tnjchem.com | China | 2990 | 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 | 3620 | 58 |
L-(-) 히스티딘 관련 검색:
L-히스티딘염산염 히스티딘에이치씨엘 글리신 2-퀴노자린카르복실산 L-카노신 프로피온산 L-(-) 히스티딘
Methyl L-histidinate dihydrochloride
Histamine dihydrochloride
Isopropyl palmitate
PALMITOLEIC ACID METHYL ESTER
FMOC-HISTIDINE(BOC)-OH,FMOC-HISTIDINE(BOC)-OH
FMOC-HISTIDINE(MTT)-OH,FMOC-HISTIDINE(MTT)-OH
HHHHHH
FMOC-D-HISTIDINE(TRITYL),FMOC-D-HISTIDINE(1-TRT)-OH,FMOC-D-HISTIDINE(TRITYL),FMOC-D-HISTIDINE(1-TRT)-OH
D-Histidine hydrochloride monohydrate
D-HISTIDINE HYDROCHLORIDE MONOHYDRATE
N-Boc-L-Histidine