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Details

Stereochemistry RACEMIC
Molecular Formula C6H12N2O4S2
Molecular Weight 240.3
Optical Activity ( + / - )
Defined Stereocenters 2 / 2
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of CYSTINE, DL-

SMILES

N[C@H](CSSC[C@@H](N)C(O)=O)C(O)=O

InChI

InChIKey=LEVWYRKDKASIDU-QWWZWVQMSA-N
InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m1/s1

HIDE SMILES / InChI

Molecular Formula C6H12N2O4S2
Molecular Weight 240.3
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 2 / 2
E/Z Centers 0
Optical Activity UNSPECIFIED

Description
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/7173742 | https://www.ncbi.nlm.nih.gov/pubmed/11709062 | https://www.drugbank.ca/drugs/DB00138

DL-Cystine is a racemic mixture of the proteinogenic amino acids L-cystine and the non-proteinogenic D-cystine. Cystine is the oxidized dimer form of the amino acid cysteine. L-Cystine serves two biological functions, a site of redox reactions and a mechanical linkage that allows proteins to retain their 3-dimensional structure. DL-cystine is used in the preparation of sulfur-containing dimeric and monomeric surfactants.

Originator

Sources: Zeitschrift fuer Physiologische Chemie, Volume 14, Pages 109-50, Journal

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
Infrared analysis of urinary calculi by a single reflection accessory and a neural network interpretation algorithm.
2001
Capture and identification of folding intermediates of cystinyl proteins by cyanylation and mass spectrometry.
2001
Blood glutathione and cysteine concentrations in twin children.
2001 Apr
Histological and histochemical observations in the stomach of the Senegal sole, Solea senegalensis.
2001 Apr
Assignment of the disulfide bonds of huwentoxin-II by Edman degradation sequencing and stepwise thiol modification.
2001 Apr
Determination by liquid chromatography of free and total cysteine in human urine in the form of its S-quinolinium derivative.
2001 Apr 13
Homologues of archaeal rhodopsins in plants, animals and fungi: structural and functional predications for a putative fungal chaperone protein.
2001 Apr 2
xCt cystine transporter expression in HEK293 cells: pharmacology and localization.
2001 Apr 20
Hounsfield unit density in the determination of urinary stone composition.
2001 Aug
An efficient refolding method for the preparation of recombinant human prethrombin-2 and characterization of the recombinant-derived alpha-thrombin.
2001 Aug
Urinary sulfur compounds in Down syndrome.
2001 Aug
Solid phase assay of urine cystine supersaturation in the presence of cystine binding drugs.
2001 Aug
Identification and characterization of a new mammalian glutaredoxin (thioltransferase), Grx2.
2001 Aug 10
The activation of dopamine D4 receptors inhibits oxidative stress-induced nerve cell death.
2001 Aug 15
Solution structure of the satiety factor, CART, reveals new functionality of a well-known fold.
2001 Aug 7
[Cystine lithiasis: physiopathology and medical treatment].
2001 Feb
A DNA polymerase with specificity for five base pairs.
2001 Feb 28
The amino acid transport system b(o,+) and cystinuria.
2001 Jan-Mar
Thermosipho geolei sp. nov., a thermophilic bacterium isolated from a continental petroleum reservoir in Western Siberia.
2001 Jul
Laminar distribution of nicotinic receptor subtypes in cortical regions in schizophrenia.
2001 Jul
Medical and surgical therapy of the cystine stone patient.
2001 Jul
Metabolism of S-nitrosoglutathione by endothelial cells.
2001 Jul
Glyoxal and methylglyoxal trigger distinct signals for map family kinases and caspase activation in human endothelial cells.
2001 Jul 1
Role of the cystine-knot motif at the C-terminus of rat mucin protein Muc2 in dimer formation and secretion.
2001 Jul 1
Hyperglycemia in diabetic rats reduces the glutathione content in the aortic tissue.
2001 Jul 20
Cystinuria in the dog: clinical studies during 14 years of medical treatment.
2001 Jul-Aug
Increased plasma tryptophan in HIV-infected patients treated with pharmacologic doses of nicotinamide.
2001 Jul-Aug
Configuration and racemization determination of cysteine residues in peptides by chiral derivatization and HPLC: application to oxytocin peptides.
2001 Jun
Effect of fudosteine, a new cysteine derivative, on mucociliary transport.
2001 Jun
Estimation of the total sulfur amino acid requirement and the effect of betaine in diets deficient in total sulfur amino acids for the weanling pig.
2001 Jun
Partial restoration of lutropin activity by an intersubunit disulfide bond: implications for structure/function studies.
2001 Jun
How does hexachlorobenzene treatment affect liver uroporphyrinogen decarboxylase?
2001 Jun
The molecular bases of cystinuria and lysinuric protein intolerance.
2001 Jun
Cystine calculi in children: the results of a metabolic evaluation and response to medical therapy.
2001 Jun
Circular proteins in plants: solution structure of a novel macrocyclic trypsin inhibitor from Momordica cochinchinensis.
2001 Jun 22
Monitoring of the subtraction process in solid-phase representational difference analysis: characterization of a candidate drug.
2001 Jun 27
Human cystine/glutamate transporter: cDNA cloning and upregulation by oxidative stress in glioma cells.
2001 Jun 6
Role of stone analysis in metabolic evaluation and medical treatment of nephrolithiasis.
2001 Mar
Occurrence of the Asn45Ser mutation in the GPIX gene in a Belgian patient with Bernard Soulier syndrome.
2001 Mar
Disulfide bond structure of the AVR9 elicitor of the fungal tomato pathogen Cladosporium fulvum: evidence for a cystine knot.
2001 Mar 27
Molecular cloning of preproinsulin cDNAs from several osteoglossomorphs and a cyprinid.
2001 Mar 28
[Leber's hereditary optic neuropathy].
2001 Mar-Apr
Evaluation of urinary carnitine and taurine excretion in 5 cystinuric dogs with carnitine and taurine deficiency.
2001 Mar-Apr
Extracorporeal shock wave lithotripsy in children. Efficacy, complications and long-term follow-up.
2001 May
A new strategy for the synthesis of cyclopeptides containing diaminoglutaric acid.
2001 May
The metabolism of sulphur in relation to the biochemistry of cystine and cysteine: its fundamental importance in biology. A cyclic interchange between their mono- and di-sulphides is the unique reaction creating life and intelligence.
2001 May
Energy utilization of low-protein diets in growing pigs.
2001 May
Evolution and classification of cystine knot-containing hormones and related extracellular signaling molecules.
2001 May
Human cystinuria-related transporter: localization and functional characterization.
2001 May
Pediatric urolithiasis in Armenia: a study of 198 patients observed from 1991 to 1999.
2001 Sep
Patents

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
The study was performed with the MG 155 strain of the dermatophyte Microsporum gypseum (ATCC 26 554). For inoculum we used a suspension of spores (100/nL) released from the surface of cultures cultivated for 10 d on Sabouraud's agar (4 % glucose, 1% peptone) at 26C after shaking with glass beads. The medium contained 0.8 % glucose, 0.2 % arginine hydrochloride and 0.04 % potassium dihydrogenphosphate, and was sterilized repeatedly in a stream of steam. As a source of sulphur the basic medium A contained 1 mM sodium sulphate, medium B 3 mM L-cystine and medium C 3 mM DL-cystine. Cystine was added to the sterile medium in the form of a concentrated solution in 1 ~t hydrochloric acid and the medium was immediately neutralized with 1 M potassium hydroxide.
Substance Class Chemical
Created
by admin
on Wed Apr 02 09:59:52 GMT 2025
Edited
by admin
on Wed Apr 02 09:59:52 GMT 2025
Record UNII
06681CV9GH
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
CYSTINE, DL-
Systematic Name English
NSC-203781
Preferred Name English
DL-CYSTINE
Systematic Name English
CYSTINE DL-FORM [MI]
Common Name English
Classification Tree Code System Code
CFR 21 CFR 862.1240
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
Code System Code Type Description
FDA UNII
06681CV9GH
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY
MERCK INDEX
m4049
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY Merck Index
EPA CompTox
DTXSID50859005
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY
CAS
923-32-0
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY
ECHA (EC/EINECS)
213-094-5
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY
NSC
203781
Created by admin on Wed Apr 02 09:59:52 GMT 2025 , Edited by admin on Wed Apr 02 09:59:52 GMT 2025
PRIMARY
Related Record Type Details
IMPURITY -> PARENT
IMPURITY -> PARENT