ChemicalBook > CAS DataBase List > DL-Cystine

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
More
Less

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)
More
Less

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
More
Less

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.

More
Less

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
More
Less

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

More
Less

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
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44688
Advantage
61
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18207
Advantage
66
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9976
Advantage
60
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
chenyj@titansci.com
Country
China
ProdList
14103
Advantage
59
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42958
Advantage
64
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768850
Email
1791901229@qq.com
Country
China
ProdList
8838
Advantage
52
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3295
Advantage
57
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
ProdList
12984
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
RYSS TECH LTD
Tel
400-188-0725 +86 21 34310725 13611771617
Fax
+86 21 34311076
Country
China
ProdList
2002
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9815
Advantage
79
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Shanghai civi chemical technology co.,Ltd
Tel
86-21-34053660
Fax
86-21-34053661
Email
sale@labgogo.com
Country
China
ProdList
9865
Advantage
52
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12335
Advantage
58
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
The future of Shanghai Industrial Co., Ltd.
Tel
021-61552785
Fax
021-55660885
Email
sales@shshiji.com
Country
China
ProdList
9545
Advantage
55
Shanghai Ruji Biology Technology Co., Ltd.
Tel
+86-21-65211385-8001 36031160
Fax
+86-21-65211385-8004
Email
sales@shruji.com
Country
China
ProdList
3224
Advantage
55
Shanghai Yolne Chemical Co., Ltd.
Tel
021-62960152
Fax
021-52212593
Email
934678158@qq.com
Country
China
ProdList
9899
Advantage
55
TargetMol Chemicals Inc.
Tel
021-021-33632979 15002134094
Fax
021-33632979
Email
marketing@targetmol.com
Country
China
ProdList
7783
Advantage
58
Shanghai BeiZhuo Biotech Co., Ltd.
Tel
021-61119791,13386096464
Fax
021-50190009
Email
bzswkf@foxmail.com
Country
China
ProdList
3921
Advantage
50
Amatek Scientific Co. Ltd.
Tel
0512-56316828 4008675858
Fax
+86-512-56316826
Email
sales@amateksci.com
Country
China
ProdList
9894
Advantage
55
Bide Pharmatech Ltd.
Tel
400-164-7117 13681763483
Fax
+86-21-61629029
Email
product02@bidepharm.com
Country
China
ProdList
41462
Advantage
60
RiZhao LiDeShi Chemical Co., Ltd.
Tel
010-51268198
Fax
010-63833209
Email
leadershipchem@126.com
Country
China
ProdList
2546
Advantage
58
Mei Lan Industrial (Shanghai) Co., Ltd.
Tel
021-58958189
Fax
021-58957967
Email
wouchina@126.com
Country
China
ProdList
2666
Advantage
55
Sichuan Wei Keqi Biological Technology Co., Ltd.
Tel
028-81700200 18116577057
Fax
028-81705658
Email
3003855609@qq.com
Country
China
ProdList
7887
Advantage
56
Wuxi Zhongkun Biochemical Technology Co., Ltd.
Tel
0510-85629785 18013409632
Fax
051085625359
Email
sales@reading-chemicals.com
Country
China
ProdList
15178
Advantage
58
Shanghai CanSpecsci Instrument Co., Ltd.
Tel
400-6087598 15021221957
Fax
4006087598-8012
Email
order@canspecsci.com
Country
China
ProdList
2045
Advantage
56
Suzhou yacoo science co.,Ltd
Tel
0512-87182056 18013166090
Fax
0512-87182056
Email
lingling.qi@yacoo.com.cn
Country
China
ProdList
7295
Advantage
60
Credit Asia Chemical Co., Ltd.
Tel
+86 (21) 61124340
Fax
+86 (21) 6129-4103
Country
China
ProdList
9756
Advantage
58
Chengdu Chuangkecheng Biological Technology Co., Ltd.
Tel
028-028-0000000 13008177686
Fax
15928581901
Email
sales@ckcbiotech.com
Country
China
ProdList
777
Advantage
55
Giant chemicals
Tel
028-85434334 18108076537
Fax
QQ：245797092
Email
market@gianthx.com
Country
China
ProdList
4505
Advantage
56
Beijing NuoqiYa Biotechnology Co., Ltd.
Tel
4000-819-385 010-62329685 13718666987
Fax
010-62340519
Country
China
ProdList
1971
Advantage
55
Codow Chemical Co.,Ltd.
Tel
18620099427
Fax
+86-20-62619665
Email
amy@howeipharm.com
Country
China
ProdList
17687
Advantage
55
Chemwill Asia Co.,Ltd.
Tel
86-21-51086038
Fax
86-21-51861608
Email
sales@chemwill.com
Country
China
ProdList
1974
Advantage
58
Shanghai Xilong Biochemical Technology Co., Ltd.
Tel
021-52907766-8042
Fax
021-52906523
Country
China
ProdList
9941
Advantage
58
Shanghai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847; 18021002903
Fax
QQ:3008007432
Email
3008007409@qq.com
Country
China
ProdList
27313
Advantage
60
Shandong Xiya Chemical Co., Ltd.
Tel
4009903999 13395398332
Fax
0539-6365991
Email
sales@xiyashiji.com
Country
China
ProdList
20806
Advantage
60
Raw material medicin reagent co.,Ltd
Tel
Email
sales@njromanme.com
Country
China
ProdList
4529
Advantage
58
Grader reagent
Tel
18221735425
Email
sales@xinpingchem.com
Country
China
ProdList
9942
Advantage
58
Beijing Solarbio Science & Tecnology Co., Ltd.
Tel
010-50973186 4009686088
Email
3193328036@qq.com
Country
China
ProdList
18338
Advantage
68
Amadis Chemical Company Limited
Tel
571-89925085
Fax
0086-571-89925065
Email
sales@amadischem.com
Country
China
ProdList
131957
Advantage
58
Shanghai Uteam Biotechnology Co., Ltd.
Tel
021-36031160 13311776681
Email
3338195766@QQ.com
Country
China
ProdList
5175
Advantage
55
Shanghai Biological Technology Development Co., Ltd.
Tel
021-69955236-807 13918189704
Fax
021-65211385
Email
chinaruji@chinaruji.com
Country
China
ProdList
5176
Advantage
55
More
Less

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