ID	CAS	Name	Synonyms	Molecular Formula	Category
1		cystine		C6H12N2O4S2
2	349-46-2	D-Cystine	D-CYSTINE D-Cystine H-D-CYSTINE D(+)-CYSTINE (H-D-CYS-OH)2 D-CYSTINE CRYSTALLINE D(+)-3,3-Dithiobis(2-aminopropanoic acid) D(+)-3,3'-DITHIOBIS(2-AMINOPROPANOIC ACID) (S,S)-3,3'-DITHIOBIS(2-AMINOPROPIONIC ACID) H-D-(Cys)_2-OH~(+)-3,3-Dithiobis(2-aminopropionic acid)	C6H12N2O4S2	Amino Acids;Organic acids;Organic materials
3	923-32-0	DL-Cystine	CYSTINE CCRIS 8599 DL-Cystine DL-CYSTINE Cystine, DL- JACS-923-32-0 (H-DL-CYS-OH)2 Cystine DL-form DL-CYSTINE CRYSTALLINE beta,beta'-Dithioalanine, dl- 3,3'-DITHIO-BIS-(2-AMINOPROPIONIC ACID) 3,3'-Dithiobis(2-aminopropanoic acid), dl-	C6H12N2O4S2	Amino Acids;Amino Acids;Intermediates;Cysteine [Cys, C];Amino Acid Derivatives;Nutritional Supplements;Pharmaceutical Intermediates;Pharmaceutical intermediates
4	6020-39-9	MESO-CYSTINE	meso-Form MESO-CYSTINE (R)-3-[[(S)-2-Carboxy-2-aminoethyl]dithio]-2-aminopropanoic acid (S)-2-amino-3-(((R)-2-amino-2-carboxyethyl)disulfanyl)propanoic acid (2S)-2-amino-3-[[(2R)-2-amino-3-hydroxy-3-oxo-propyl]disulfanyl]propanoic acid	C6H12N2O4S2
5		L-[35S]CYSTINE	L-[35S]CYSTINE	C6H12N2O4S2
6		L-CYSTINE (15N2)	L-CYSTINE (15N2)	C6H12N2O4S2
7		CYSTINE, L-[3-14C]	CYSTINE, L-[3-14C]	C6H12N2O4S2
8		L-Cystine-13C6,15N2	L-Cystine-13C6,15N2 (-)-Cystine-13C6,15N2 3,3'-Dithiobis(2-aMinopropanoic Acid)-13C6,15N2 3,3'-Dithiobis-L-alanine-13C6,15N2 Bis(β-aMino-β-carboxyethyl)-13C6,15N2 Disulfide Cystine Αcid-13C6,15N2 Dicysteine-13C6,15N2 L-Cysteine-13C6,15N2 Disulfide	C6H12N2O4S2	Amino Acids & Derivatives;Isotope Labelled Compounds
9	136743-62-9	L-Cystine-1,1μ-13C2	L-Cystine-1,1μ-13C2	C6H12N2O4S2	Amino Acids;Stable Isotopes;Metabolic Research
10		L-CYSTINE (3,3'-13C2)	L-CYSTINE (3,3'-13C2)	C6H12N2O4S2	Amino Acids 13C, 2H, 15N
11	1192736-38-1	L-Cystine-3,3,3',3'-d4	L-Cystine-3,3,3',3'-d4	C6H12N2O4S2
12	352431-53-9	DL-CYSTINE-2,2',3,3,3',3'-D6	DL-Cystine-d6 DL-CYSTINE-2,2',3,3,3',3'-D6	C6H12N2O4S2	Clinical testing standard substance
13	119752-83-9	1,4-Diazabicyclo[2.2.2]octane-1,4-diium-1,4-disulfinate	DABSO 1,4-Diazoniabicyclo[2.2.2]octane-1,4-disulfinate 1,4-Diazoniabicyclo[2.2.2]octane-1,4-disulphinate 1,4-Diazabicyclo[2.2.2]octane-1,4-diium-1,4-disulfinate 1,4-Diazabicyclo[2.2.2]octane bis(sulfur dioxide) adduct Bis(sulfur Dioxide)-1,4-diazabicyclo[2.2.2]octane Adduct 1,4-diazabicyclo [2.2.2] octane-1,4-dinium-1,4-disulfonic acid	C6H12N2O4S2	Intermediates-Pharmaceutical Intermediates
14	1200836-86-7	(R)-2-acetamido-3-mercapto-N-(methylsulfonyl)propanamide	(R)-2-acetamido-3-mercapto-N-(methylsulfonyl)propanamide Propanamide, 2-(acetylamino)-3-mercapto-N-(methylsulfonyl)-, (2R)-	C6H12N2O4S2

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