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L-(-)-티로신

L-(-)-티로신
L-(-)-티로신 구조식 이미지
카스 번호:
60-18-4
한글명:
L-(-)-티로신
동의어(한글):
L-(-)-티로신;티로신;타이로신
상품명:
L-Tyrosine
동의어(영문):
TYR;L-TYR;LB24-AB;SK29-AB;3,3-D2);Tyrosin;H-TYR-OH;TYROSINE;L-Tyr-OH;FEMA 3736
CBNumber:
CB1269334
분자식:
C9H11NO3
포뮬러 무게:
181.19
MOL 파일:
60-18-4.mol

L-(-)-티로신 속성

녹는점
>300 °C (dec.)(lit.)
알파
-11.65 º (c=5,DIL HCL/H2O 50/50)
끓는 점
314.29°C (rough estimate)
밀도
1.34
굴절률
-12 ° (C=5, 1mol/L HCl)
FEMA
3736 | L-TYROSINE
인화점
176 °C
저장 조건
Store at RT.
용해도
1 M HCl: 25 mg/mL
물리적 상태
powder
산도 계수 (pKa)
2.2(at 25℃)
색상
White to Pale-brown
수소이온지수(pH)
6.5 (0.1g/l, H2O)
optical activity
[α]20/D 11.5±1.0°, c = 4% in 1 M HCl
수용성
0.45 g/L (25 ºC)
Merck
14,9839
JECFA Number
1434
BRN
392441
안정성
Stable. Incompatible with strong oxidizing agents, strong reducing agents.
InChIKey
OUYCCCASQSFEME-QMMMGPOBSA-N
CAS 데이터베이스
60-18-4(CAS DataBase Reference)
NIST
Tyrosine(60-18-4)
EPA
L-Tyrosine(60-18-4)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi
위험 카페고리 넘버 36/37/38-40
안전지침서 26-36-37/39-22
WGK 독일 3
RTECS 번호 YP2275600
TSCA Yes
HS 번호 29225000
유해 물질 데이터 60-18-4(Hazardous Substances Data)
독성 LD50 orally in Rabbit: > 5110 mg/kg
그림문자(GHS):
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P304+P340 흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

L-(-)-티로신 MSDS


3-(4-Hydroxyphenyl)-L-alanine

L-(-)-티로신 C화학적 특성, 용도, 생산

화학적 성질

White to off-white powder

화학적 성질

L-Tyrosine is odorless and has a bland taste. L-Tyrosine is a nonessential amino acid, as it is synthesized in the human body from phenylalanine. It is a precursor to epinephrine, norepinephrine and dopamine, three important neurotransmitters.

출처

Reported found in white 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 and turkey.

용도

tyrosine is an amino acid. Cutaneous applications may produce an extra reserve of tyrosine in the skin, assisting or “activating” melanin synthesis. This in turn should increase and prolong the effect of the tanning process. Tyrosine’s effect is improved if the product contains vitamin B (riboflavin) plus an additional compound referred to chemically as ATP (adenosine triphosphate). experiments conducted with l-tyrosine in the form of watersoluble derivatives found that it penetrates the epidermis to the basal layer where the melanocytes are located. It is used in suntan accelerators and in skin-bronzing cosmetics to accelerate the tanning process.

용도

neuromuscular blocker

용도

L-Tyrosine is one of the 22 proteinogenic amino acids that are used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters: dopamine, norepinephrine, and epinephrine.

정의

ChEBI: An optically active form of tyrosine having L-configuration.

Aroma threshold values

Detection: >10 ppm

Safety Profile

An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Likely impurities are L-cysteine and the ammonium salt. L-Tyrosine is dissolved in dilute ammonia, then crystallised by adding dilute acetic acid to pH 5. Also, crystallise it from H2O or EtOH/H2O, and dry it at room temperature in a vacuum over P2O5. It sublimes at 235-240o/0.03mm with 99.2% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Albert Biochem J 50 690 1952, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2348-2366 1961, Beilstein 14 IV 2264.]

L-(-)-티로신 준비 용품 및 원자재

원자재

준비 용품


L-(-)-티로신 공급 업체

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