 Home > Encyclopedia > DL-Cystine

DL-Cystine

DL-Cystine structure

CAS No:
923-32-0
Formula:
C6H12N2O4S2
Chemical Name:
DL-Cystine
Synonyms:
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
Categories:
Biochemical Engineering > Amino Acids and Proteins

Description

white to off-white powder

DryPowder

Cystine is a sulfur-containing amino acid obtained by the oxidation of two cysteine molecules which are then linked via a disulfide bond. It has a role as a human metabolite and a mouse metabolite. It is an organic disulfide, a sulfur-containing amino acid and a cysteine derivative. It is a tautomer of a cystine zwitterion.|A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.

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.

DL-Cystine Basic Attributes

Molecular Weight：

240.3

Exact Mass：

240.30

BRN：

1728095

EC Number：

213-094-5

NSC Number：

755897|203781|205366|13203

DSSTox ID：

DTXSID2046418

Color/Form：

White

HScode：

29309014

Characteristics

PSA：

177

XLogP3：

1.23

Appearance：

White Powder

Density：

1.358 (estimate)

Melting Point：

227 °C (dec.)(lit.)

Boiling Point：

468.2±45.0 °C(Predicted)

Flash Point：

237.0±28.7 °C

Refractive Index：

1.6000 (estimate)

Water Solubility：

Soluble in dilute acid and alkali solution, highly soluble in water, not soluble in alcohol.

PKA：

2.1(at 35℃)

Critical Temperature & Pressure：

Keep in dark place,Inert atmosphere,Room temperature

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

Xn,Xi

safety instructions：

37/39-26-24/25-36

Marks：

Xn,Xi

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

36/37/38-22

GHS Classification：

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P301+P312, P330, and P501|Aggregated GHS information provided by 5 companies from 2 notifications to the ECHA C&L Inventory.|Not Classified

Drug Information

Drug Indication：

Parenteral nutrition

MeSH Entry Terms：

Copper Cystinate

DL-Cystine Use and Manufacturing

Methods of Manufacturing

Using L-cystine as a raw material, refluxing in 6mol/L hydrochloric acid for several hours, active carbon treatment, concentration, ammonia water neutralization to obtain crude cystine, and then recrystallization to obtain a pure product.

Uses

Used as a biochemical reagent

Fillers

Food Products

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.

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

Manufacturing Info：

Food, beverage, and tobacco product manufacturing|L-Cystine: ACTIVE

Use Classification：

Food additives -> Flavoring Agents|Human Drugs -> EU pediatric investigation plans|Cosmetics -> Antistatic; Hair conditioning

Food Additive Classes：

Flavoring Agents

Computed Properties

Molecular Weight:240.3
XLogP3:-6.3
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:8
Rotatable Bond Count:7
Exact Mass:240.02384922
Monoisotopic Mass:240.02384922
Topological Polar Surface Area:177
Heavy Atom Count:14
Complexity:192
Undefined Atom Stereocenter Count:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Ammonium hydroxide

Recommended Suppliers of DL-Cystine

HANGZHOU LEAP CHEM CO., LTD. Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals,Biochemicals,Pharmaceuticals,Screening Compounds,Food Additives

DL-Cystine

CAS No.: 923-32-0

Content: 99.00%

Inquiry
Shaanxi Dideu Medichem Co. Ltd Contact Supplier

CN
5 YRS

Business licensed Certified factory

Manufactory Supplier of Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst,Chemical Materials,Chem&Pharm Intermediates,Organic Intermediates,Feed Additive

High Quality 99% Purity of DL-Cystine CAS NO 923-32-0 ISO 9001:2005 REACH Verified Producer

CAS No.: 923-32-0

Grade: Industrial Grade

Content: 99%

Inquiry
Henan Lihao Chem Plant Limited Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of PVC resin,pvc paste resin,melamine

DL-Cystine 99% white powder kanbei

CAS No.: 923-32-0

Grade: Industrial Grade

Content: 99%

Inquiry

Learn More Other Chemicals

(9β,11β,16β)-21-(Acetyloxy)-9,11-epoxy-17-hydroxy-16-methylpregna-1,4-diene-3,20-dione

912-38-9
(S)-4-Thiazolidinecarboxylic acid

45521-09-3
DL-CYSTINEHYDROCHLORIDE

90350-38-2
Peptones, beef Formula

91079-38-8
Epidermal Growth Factor Formula

62253-63-8
γ-L-Glutamyl-selenomethyl-L-selenocysteine Formula

26046-89-9
BOC-D-ARG(TOS)-OH ETOAC Structure

114622-81-0
β-Aminobenzenebutanoic acid Structure

15099-85-1
What is AC-ARG-OH 2H2O

210545-23-6
What is Acetochlor OA

194992-44-4

Hot Searches: reta where to buy; soda-lime; 9-me-bc for sale; fluocinolone acetonide oil ear drops 0.01 price; sodium acetate sds; where can i get retatrutide

Guide of DL-Cystine

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
Learn More Other Chemicals

DL-Cystine

SDS

Request for Quotation



Feedback & Suggestions

Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.