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

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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