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HCID 6992087생성일: 2026년 11월 4일

L-메티오닌

메티오닌 · L-(-)-메티오닌 · L-메티오닌 · METHIONINE · MET · H-MET-OH · L-MET · L-Met-OH

https://huagongshe.com/ko/chemical/6992087

L-메티오닌 분자 구조식

식별자 및 물리적 특성

CAS No.63-68-3
분자식C5H11NO2S
평균 분자량149.21 g/mol
단동위원소 질량149.05104977 g/mol
SMILESCSCC[C@H]([NH3+])C(=O)[O-]
InChIKeyFFEARJCKVFRZRR-BYPYZUCNSA-N
PubChem CID6992087
ChEBICHEBI:57844
현지명L-메티오닌

화학 및 물리적 성질

XLogP-1.2
극성 표면적93.1
수소 결합 공여자 수1
수소 결합 수용자 수3
회전 가능 결합 수3
무거운 원자 수9
형식 전하0
복잡도91.4
LogP(분배 계수)-1.87
용해도56.6 mg/mL1 M HCl: 0.5 M , 20 °C, 투명, 무색
녹는점284 °C284 °C (dec.)(lit.)
Physical DescriptionSolid
Dissociation Constants2.28 (at 25 °C)
끓는 점393.91°C (estimate)
밀도1,34g/cm
굴절률1.5216 (estimate)
저장 조건20-25°C
pKa(산도 계수)2.13(at 25℃)
물리적 상태고체
색상하얀색
냄새약간의 특유의 냄새
pH5-7 (10g/l, H2O, 20℃)
생물학적 소스synthetic
용해도녹는
Merck14,5975
BRN1722294
안정성안정적인. 강한 산화제와 호환되지 않습니다.
주요 응용펩타이드 합성의약품(소분자)
InChI1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
InChIKeyFFEARJCKVFRZRR-BYPYZUCNSA-N
SMILESCSCC[C@H](N)C(O)=O
LogP(분배 계수)0.217 (est)
NISTL-Methionine(63-68-3)
EPAL-Methionine (63-68-3)

안전 및 규제

수질 위해 등급(WGK)2
TSCA 등재 상태TSCA listed
RTECS 번호PD0457000
독성LD50 oral in rat: 36gm/kg
관세 코드29304010
위험 문구(R)33
안전 문구(S)24/25
기존화학 물질KE-01485
F 고인화성물질10-23
저장 분류11 - Combustible Solids
유해 물질 데이터63-68-3(Hazardous Substances Data)

용도

개요

Colorless or white lustrous plates, or a white crystalline powder. It has a slight, characteristic odor. It is soluble in water, in alkali solutions, and in dilute mineral acids. It is slightly soluble in alcohol and practically insoluble in ether.

용도

L-Methionine is used as an essential amino acid for human development and therapeutically acts as an antidote for acetaminophen poisoning. It serves as a chelating agent for heavy metals, as a flavoring agent and nutritional supplement for foods. It acts as a feed additive, vegetable oil enrichment and as a single cell protein. In addition to this, it is used as a hepatoprotectant and also acts as a lipotropic agent and prevents excess fat buildup in the liver.

일반 설명

Minute hexagonal plates from dilute alcohol.

제조 및 합성 방법

제조 방법

The production method of choice for L-methionine is still the enzymatic resolution of racemic N-acetyl-methionine using acylase from Aspergillus oryzae. The production is carried out in a continuously operated fixed-bed or enzyme membrane reactor.

생산 방법

Numerous methods have been described for manufacture of methionine, including hydrolysis of methionine amide )and 5-(bmethylmercaptoethyl)- hydantoin.