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DL-Cystine

Product Name
DL-Cystine
CAS No.
923-32-0
Chemical Name
DL-Cystine
Synonyms
CYSTINE;DL-CYSTINE;Cystine, DL-;Cystine JACS-923-32-0;(H-DL-CYS-OH)2;DL-Cystine,99%;DL-Cysteine-15N;Phoxim Impurity 4;DL-CYSTINE, MESOFREE
CBNumber
CB5242140
Molecular Formula
C6H12N2O4S2
Formula Weight
240.3
MOL File
923-32-0.mol
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DL-Cystine Property

Melting point:
227 °C (dec.)(lit.)
Boiling point:
468.2±45.0 °C(Predicted)
Density 
1.358 (estimate)
refractive index 
1.6000 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
1 M HCl: soluble
form 
Powder
pka
2.1(at 35℃)
color 
White
Water Solubility 
Soluble in dilute acid and alkali solution, highly soluble in water, not soluble in alcohol.
Merck 
14,2782
BRN 
1728095
LogP
-4.340 (est)
CAS DataBase Reference
923-32-0(CAS DataBase Reference)
NIST Chemistry Reference
Dl-cystine(923-32-0)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
36/37/38-22
Safety Statements 
37/39-26-24/25-36
WGK Germany 
3
HS Code 
29309014
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P330Rinse mouth.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
C8630
Product name
DL-Cystine
Packaging
1g
Price
$64.6
Updated
2023/06/20
Sigma-Aldrich
Product number
C8630
Product name
DL-Cystine
Packaging
5g
Price
$259
Updated
2023/06/20
TCI Chemical
Product number
C0518
Product name
Cystine (DL- and meso- mixture)
Purity
>98.0%(HPLC)(T)
Packaging
1g
Price
$30
Updated
2024/03/01
TCI Chemical
Product number
C0518
Product name
Cystine (DL- and meso- mixture)
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$40
Updated
2024/03/01
Alfa Aesar
Product number
J63564
Product name
DL-Cystine
Packaging
5g
Price
$55.65
Updated
2024/03/01
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DL-Cystine Chemical Properties,Usage,Production

Chemical Properties

white to off-white powder

Uses

Cystine is a nonessential amino acid that acts as a nutrient and dietary supplement. It is very slightly soluble in water and in alcohol. it improves the biological quality of the total protein in foods containing naturally occurring intact protein.

Uses

DL-cystine is used in the preparation of sulfur-containing dimeric and monomeric surfactants.

Definition

cystine: A molecule resulting fromthe oxidation reaction between thesulphydryl (-SH) groups of two cysteine molecules .This often occurs between adjacentcysteine residues in polypeptides.The resultant disulphide bridges(-S-S-) are important in stabilizingthe structure of protein molecules.

Definition

ChEBI: A sulfur-containing amino acid obtained by the oxidation of two cysteine molecules which are then linked via a disulfide bond.

Synthesis Reference(s)

Tetrahedron Letters, 31, p. 5007, 1990 DOI: 10.1016/S0040-4039(00)97790-6

DL-Cystine Preparation Products And Raw materials

Raw materials

Ammonium hydroxide L-Cystine

Preparation Products

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DL-Cystine Suppliers

Americas 1 Austria 1 Belgium 1 Canada 1 China 181 Europe 2 France 2 Germany 5 India 8 Japan 3 Poland 1 Switzerland 3 United Kingdom 6 United States 36 Global 251
Honson Pharmatech Group
Tel
--
Fax
--
Email
info@honsons.com
Country
Canada
ProdList
61
Advantage
58
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View Lastest Price from DL-Cystine manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
DL-Cystine 923-32-0
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
98%min
Supply Ability
500kgs
Release date
2021-09-28
Hebei Weibang Biotechnology Co., Ltd
Product
DL-Cystine 923-32-0
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-08
Hebei Mojin Biotechnology Co., Ltd
Product
DL-Cystine 923-32-0
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000tons
Release date
2023-07-31

923-32-0, DL-CystineRelated Search:

DL-Homocysteine L(-)-CYSTINE BIOSYNTH,L-CYSTINE, REAGENT GRADE, SIGMA GRADE,L-Cystine,99%,L-CYSTINE, REAG.,L-CYSTINE FREE BASE BIOTECHNOLOGY*PERFOR,L-CYSTINE,FCC DL-Cysteine L-Cysteine Cyproterone acetate D-PENICILLAMINE DISULFIDE DL-CYSTINE HYDROCHLORIDE N,N'-Bis(benzyloxycarbonyl)-L-cystine L-Cystine Dimethyl Ester 2HCl,L-CYSTINE DIMETHYL ESTER DIHYDROCHLORIDE, >=95% L-Cystine hydrochloride MESO-CYSTINE N,N’-di-Boc-L-cystine D-CYSTINE CRYSTALLINE N,N-Dibenzoyl-L-Cystine>96% L-CYSTINE DIHYDROCHLORIDE SYNTHETICALLY DERIVED,L-CYSTINE DIHYDROCHLORIDE SALT,Cystine2HCl,L-,L-Cystine dihydrochloride, non-animal source, cell culture tested SELENO-DL-CYSTINE,SELENIUM-DL-CYSTINE L-CYSTINE DI-B-NAPHTHYLAMIDE FREE BASE N,N'-BIS(TRIFLUOROACETYL) L-CYSTINE

  • Cystine, DL-
  • (H-DL-CYS-OH)2
  • CYSTINE
  • (+/-)-3,3'-DITHIOBIS(2-AMINOPROPIONIC ACID)
  • 3,3'-DITHIO-BIS-(2-AMINOPROPIONIC ACID)
  • DL-CYSTINE
  • JACS-923-32-0
  • DL-CYSTINE CRYSTALLINE
  • DL-CYSTINE, MESOFREE
  • H-DL-(Cys)2-OH~(+/-)-3,3'-Dithiobis(2-aminopropionicacid)
  • DL-Cysteine-15N
  • 2-Amino-3-(2-amino-3-hydroxy-3-oxopropyl)disulfanylpropanoic acid
  • (±)-2,2'-Diamino-3,3'-dithiodipropionic acid
  • DL-Cystine,99%
  • CYSTINE (DL AND MESO- MIXTURE)
  • Cystine&nbsp
  • (R,S)-3,3'-Dithio-bis(2-aminopropionic acid)
  • DL-Cystine≥ 99% (TLC)
  • DL-Cystine, Free Acid
  • 3,3'-Disulfanediylbis(2-aMinopropanoic acid)
  • (2R)-2-ammonio-3-[[(2S)-2-ammonio-2-carboxylatoethyl]disulfanyl]propanoate
  • Cystine (DL- and meso- mixture)&gt
  • DL-Cystine USP/EP/BP
  • 3,3′-disulfanediylbis[(2R)-2-aminopropanoic acid] (cystine)
  • Phoxim Impurity 4
  • 923-32-0
  • C6H14N2O4S2
  • HOOCCHNH2CH2SSCH2CHNH2COOH
  • Cysteine/Cystine
  • Specialty Synthesis
  • Peptide Synthesis
  • Amino Acids and Peptides
  • Amino Acids
  • Biochemicals and Reagents
  • Amino Acid Derivatives
  • BioChemical
  • Amino Acid Derivatives
  • Cysteine [Cys, C]
  • Amino Acids
  • Nutritional Supplements
  • Amino Acids
  • Pharmaceutical Intermediates