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L-cystathionine

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Origin: China

Cas No: 56-88-2

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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CAS No.: 56-88-2 Formula: C7H14N2O4S Molecular Weight: 222.26200

Description

Cystathionine is an intermediate in the synthesis of cysteine.
An excess in the urine is called cystathioninuria.
Biosynthetically, cystathionine is generated from homocysteine and serine by cystathionine beta synthase (upper reaction in the diagram below). It is then cleaved into cysteine and α-ketobutyrate by cystathionine gamma-lyase (lower reaction).

Basic Info

Chemical Name	L-cystathionine
Synonyms	L-Cystathionine; (Quinoxalin-6-yl)methanamine hydrochloride;
CAS No.	56-88-2
Molecular Formula	C7H14N2O4S
Molecular Weight	222.26200
PSA	151.94000
LogP	0.33410

Properties

Appearance & Physical State	White Crystalline Solid
Density	1.43g/cm3
Boiling Point	481ºC at 760mmHg
Melting Point	312ºC
Flash Point	244.7ºC
Refractive Index	1.592
Storage Condition	-20ºC

Synthesis Route

L-Cystine→L-cystathionine
Nα-tert-butyloxycarbonylcystathionine α'-methyl ester→L-cystathionine
L-Homocysteine+3-CHLORO-L-ALANINE HYDROCHLORIDE→L-cystathionine

Precursor

L-serine
3-CHLORO-L-ALANINE HYDROCHLORIDE
L-Cystine
L-Homocysteine

Downstream Product

pyruvate
Ammonia
L-Homocysteine
Pyruvic acid

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