ChemicalBook >> CAS DataBase List >>DL-Cystine

DL-Cystine

DL-Cystine structure

CAS No.: 923-32-0

Chemical Name:: DL-Cystine

Synonyms: CYSTINE;DL-CYSTINE;Cystine Cystine, DL-;JACS-923-32-0;DL-Cystine,99%;(H-DL-CYS-OH)2;DL-Cysteine-15N;Phoxim Impurity 4;DL-CYSTINE, MESOFREE

CBNumber:: CB5242140

Molecular Formula:: C6H12N2O4S2

Molecular Weight:: 240.3

MDL Number:: MFCD00084652

MOL File:: 923-32-0.mol

MSDS File:: SDS

Last updated:2024-11-08 10:59:09

Request For Quotation

DL-Cystine Properties

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)
FDA 21 CFR	582.5273; 310.545
Substances Added to Food (formerly EAFUS)	DL-CYSTINE
CAS DataBase Reference	923-32-0(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	06681CV9GH
NIST Chemistry Reference	Dl-cystine(923-32-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P264b-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P330-P362+P364-P403+P233-P501c
Hazard Codes	Xn,Xi
Risk Statements	36/37/38-22
Safety Statements	37/39-26-24/25-36
WGK Germany	3
HS Code	29309014

DL-Cystine price More Price(33)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	C8630	DL-Cystine	923-32-0	1g	$64.6	2023-06-20	Buy
Sigma-Aldrich	C8630	DL-Cystine	923-32-0	5g	$259	2023-06-20	Buy
TCI Chemical	C0518	Cystine (DL- and meso- mixture) >98.0%(HPLC)(T)	923-32-0	1g	$30	2024-03-01	Buy
TCI Chemical	C0518	Cystine (DL- and meso- mixture) >98.0%(HPLC)(T)	923-32-0	5g	$40	2024-03-01	Buy
Alfa Aesar	J63564	DL-Cystine	923-32-0	5g	$55.65	2024-03-01	Buy

Product number	Packaging	Price	Buy
C8630	1g	$64.6	Buy
C8630	5g	$259	Buy
C0518	1g	$30	Buy
C0518	5g	$40	Buy
J63564	5g	$55.65	Buy

DL-Cystine Chemical Properties,Uses,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

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

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.

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

DL-Cystine Suppliers

Global( 249)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8810	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12841	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29791	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29881	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49374	58
SIMAGCHEM CORP	+86-13806087780	sale@simagchem.com	China	17365	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58

Supplier	Advantage
Hebei Weibang Biotechnology Co., Ltd	58
Hebei Mojin Biotechnology Co., Ltd	58
Capot Chemical Co.,Ltd.	60
career henan chemical co	58
Hubei xin bonus chemical co. LTD	58
Chongqing Chemdad Co., Ltd	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58

View Lastest Price from DL-Cystine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-11-29	DL-Cystine 923-32-0	US $0.00 / Kg/Drum	1KG	98%min	500kgs	WUHAN FORTUNA CHEMICAL CO., LTD
2024-11-08	DL-Cystine 923-32-0	US $10.00 / KG	1KG	99%	10 mt	Hebei Weibang Biotechnology Co., Ltd
2024-04-24	DL-Cystine 923-32-0	US $50.00 / kg	1kg	99.10%	50000kg	Ouhuang Engineering Materials (Hubei) Co., Ltd

DL-Cystine
923-32-0
US $0.00 / Kg/Drum
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

DL-Cystine
923-32-0
US $10.00 / KG
99%
Hebei Weibang Biotechnology Co., Ltd

DL-Cystine
923-32-0
US $50.00 / kg
99.10%
Ouhuang Engineering Materials (Hubei) Co., Ltd

DL-Cystine Spectrum

DL-Cystine(923-32-0)MS DL-Cystine(923-32-0)¹HNMR DL-Cystine(923-32-0)IR1 DL-Cystine(923-32-0)IR2 DL-Cystine(923-32-0)Raman

923-32-0(DL-Cystine)Related 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

1of4

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 (R,S)-3,3'-Dithio-bis(2-aminopropionic acid) DL-Cystine≥ 99% (TLC) DL-Cystine, Free Acid 3,3'-Disulfanediylbis(2-aMinopropanoic acid) Cystine, DL- (H-DL-CYS-OH)2 CYSTINE (+/-)-3,3'-DITHIOBIS(2-AMINOPROPIONIC ACID) 3,3'-DITHIO-BIS-(2-AMINOPROPIONIC ACID) DL-CYSTINE DL-CYSTINE CRYSTALLINE DL-CYSTINE, MESOFREE (2R)-2-ammonio-3-[[(2S)-2-ammonio-2-carboxylatoethyl]disulfanyl]propanoate Cystine (DL- and meso- mixture)> DL-Cystine USP/EP/BP JACS-923-32-0 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