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DL-Cystine

DL-Cystine
DL-Cystine structure
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;DL-CYSTINE, MESOFREE;DL-Cystine USP/EP/BP
CBNumber:
CB5242140
Molecular Formula:
C6H12N2O4S2
Formula Weight:
240.3
MOL File:
923-32-0.mol

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
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
NIST Chemistry Reference
Dl-cystine(923-32-0)
SAFETY
  • Risk and Safety Statements
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(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich C8630 DL-Cystine 923-32-0 1g $54 2021-03-22 Buy
Sigma-Aldrich C8630 DL-Cystine 923-32-0 5g $217 2021-03-22 Buy
Sigma-Aldrich 1161586 Cystine United States Pharmacopeia (USP) Reference Standard 923-32-0 200 mg $429 2021-03-22 Buy
TCI Chemical C0518 Cystine (DL- and meso- mixture) >98.0%(HPLC)(T) 923-32-0 1g $27 2021-03-22 Buy
TCI Chemical C0518 Cystine (DL- and meso- mixture) >98.0%(HPLC)(T) 923-32-0 5g $36 2021-03-22 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.

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

Preparation Products


DL-Cystine Suppliers

Global( 208)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20010 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63726 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47496 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072 (WhatsApp)
Wechat: +8613111626072 Wickr me: waynehu zzwenxi@126.com CHINA 13187 58
Zhengzhou Alfa Chemical Co.,Ltd
+86 13343822234
sales5@alfachem.cn;sales9@alfachem.cn;sale1@alfachem.cn;sales7@alfachem.cn CHINA 15027 58

View Lastest Price from DL-Cystine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-09-29 DL-Cystine
923-32-0
US $0.00 / Kg/Drum 1KG 98%min 500kgs WUHAN FORTUNA CHEMICAL CO., LTD
2021-07-13 DL-Cystine
923-32-0
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 DL-Cystine
923-32-0
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

DL-Cystine Spectrum


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