The “S” & “R” in the nomenclature of these molecules solely represent information regarding the stereochemistry, and this information is not related to the sulfur atom present in this molecule.
72743 has two chiral centers: one is carbon 2 on L-cysteine. The other chiral center should refer to the carbon on 2-succinyl group which connects to the sulfur. 91938 has one chiral center, which is the same one on 2-succinyl group.
72743
S-(2-Succinyl)-L-cysteine
analytical standard
Synonym(s):
2-[[(2R)-2-Amino-2-carboxyethyl]thio]butanedioic acid, S-(1,2-Dicarboxyethyl)-L-cysteine, S-(2-Succino)-L-cysteine, [[(2R)-2-Amino-2-carboxyethyl]thio]succinic acid
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About This Item
Empirical Formula (Hill Notation):
C7H11NO6S
CAS Number:
Molecular Weight:
237.23
Beilstein/REAXYS Number:
1729068
UNSPSC Code:
12352200
Recommended Products
grade
analytical standard
Quality Level
assay
≥95.0% (TLC)
form
powder or crystals
shelf life
limited shelf life, expiry date on the label
technique(s)
LC/MS: suitable
color
white to off-white
format
neat
Storage temp.
2-8°C
SMILES string
O=C([C@@](C([H])([H])S[C@@](C(O[H])=O)([H])C([H])([H])C(O[H])=O)([H])N([H])[H])O[H]
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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What is the stereochemistry of S-(2-Succinyl)-L-cysteine (P/N: 72743) and S-(1,2-Dicarboxyethyl)glutathione (P/N: 91938)? Specifically, does the "S" represent sulfur or chiral configuration?
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