ChemicalBook >> CAS DataBase List >>2,2'-dithiobis(ethylamine)

2,2'-dithiobis(ethylamine)

CAS No.
51-85-4
Chemical Name:
2,2'-dithiobis(ethylamine)
Synonyms
2,2'-disulfanediyldiethanamine;L-1591;Cystinamine;Decarboxycystine;Mercamine disulfide;2,2'-Dithiodiethylamine;2,2'-Dithiobisethanamine;2,2'-dithiobis(ethylamine);Ethanamine, 2,2'-dithiobis-;2,2-DIAMINODIETHYLDISULPHIDE
CBNumber:
CB6920175
Molecular Formula:
C4H12N2S2
Molecular Weight:
152.28
MDL Number:
MFCD01002952
MOL File:
51-85-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-27 17:00:41
Product description Number Pack Size Price
Cystamine ≥95% CS-0086613 1g $95
Cystamine ≥95% CS-0086613 5g $295
Cystamine ≥95% CS-0086613 10g $589
Cystamine ≥95% CS-0086613 25g $980
Aminoethyl-SS-ethylamine 98% bp-22847 5G $295

2,2'-dithiobis(ethylamine) Properties

Melting point 135-136 °C
Boiling point 106-108 °C(Press: 5 Torr)
Density 1.090 (estimate)
refractive index 1.5605 (estimate)
storage temp. Storage temp. -20°C
solubility Soluble in Water, DMSO, DMF, Methanol
pka 8.97±0.10(Predicted)
form Liquid
color Light yellow to brown
FDA UNII R110LV8L02

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H315-H318-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P304+P340+P312-P305+P351+P338-P310-P332+P313-P362-P403+P233-P405-P501

2,2'-dithiobis(ethylamine) price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-0086613 Cystamine ≥95% 51-85-4 1g $95 2026-06-04 Buy
ChemScene CS-0086613 Cystamine ≥95% 51-85-4 5g $295 2026-06-04 Buy
ChemScene CS-0086613 Cystamine ≥95% 51-85-4 10g $589 2026-06-04 Buy
ChemScene CS-0086613 Cystamine ≥95% 51-85-4 25g $980 2026-06-04 Buy
BroadPharm bp-22847 Aminoethyl-SS-ethylamine 98% 51-85-4 5G $295 2026-05-24 Buy
Product number Packaging Price Buy
CS-0086613 1g $95 Buy
CS-0086613 5g $295 Buy
CS-0086613 10g $589 Buy
CS-0086613 25g $980 Buy
bp-22847 5G $295 Buy

2,2'-dithiobis(ethylamine) Chemical Properties,Uses,Production

Description

Aminoethyl-SS-ethylamine contains two primary amine terminal groups and a cleavable disulfide bond. The terminal amines can participate in chemical reactions with carboxylic acids, activated NHS esters and other carbonyl compounds. The disulfide bond can be cleaved by Dithiothreitol (DTT) reagent.

Chemical Properties

Cystamine is an unstable liquid, and its dihydrochloride C4H12N2S2·2HCl is generally used. The latter is stable to 203-214°C and decomposes above this temperature.

Uses

Cystamine is the disulfide form of the free thiol, cysteamine. Cystamine is an orally active transglutaminase (Tgase) inhibitor. Cystamine also has inhibition activity for caspase-3 with an IC50 value of 23.6 μM. Cystamine can be used for the research of severals diseases including Huntington's disease (HD) [1][2][3].

Definition

ChEBI: An organic disulfide obtgained by oxidative dimerisation of cysteamine.

Synthesis

Cystamine is an organic disulfide that can be formed from the thermal decarboxylation of cystine.

in vivo

Cystamine (oral, i.p.; 112, 225 mg/kg) reduces Tgase activity and GGEL levels, lessens the behavioral and neuropathological severity, and extends survival in R6/2 transgenic HD mice[2].

Animal Model:R6/2 transgenic HD mice[2]
Dosage:112, 225 mg/kg
Administration:Intraperitoneal or oral, daily
Result:Significantly extended survival, improved body weight and motor performance, delayed the neuropathological sequela and significantly altered the levels of Tgase activity and N(Sigma)-(gamma-L-glutamyl)-L-lysine (GGEL) levels.

IC 50

Caspase 3: 23.6 μM (IC50)

References

[1] Mathieu Lesort, et al. Cystamine inhibits caspase activity. Implications for the treatment of polyglutamine disorders. J Biol Chem. 2003 Feb 7;278(6):3825-30. DOI:10.1074/jbc.M205812200
[2] Alpaslan Dedeoglu, et al. Therapeutic effects of cystamine in a murine model of Huntington's disease. J Neurosci. 2002 Oct 15;22(20):8942-50. DOI:10.1523/JNEUROSCI.22-20-08942.2002
[3] Thomas M Jeitner, et al. Cystamine and cysteamine as inhibitors of transglutaminase activity in vivo. Biosci Rep. 2018 Sep 5;38(5):BSR20180691. DOI:10.1042/BSR20180691

2,2'-dithiobis(ethylamine) Preparation Products And Raw materials

Raw materials

Preparation Products

2,2'-dithiobis(ethylamine) Suppliers

Global( 62)Suppliers
Supplier Tel Email Country ProdList Advantage
Zhengzhou Alfa Chemical Co.,Ltd
+86-18530059196 sale04@alfachem.cn China 9636 58
TargetMol Chemicals Inc.
+1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
AFINE CHEMICALS LIMITED
+86-571-85134551 +86-18958018566 info@afinechem.com China 15058 58
HANGZHOU LEAP CHEM CO., LTD.
+86-571-87711850 +86-15355479329 market18@leapchem.com China 43303 58
Shanghai Acmec Biochemical Technology Co., Ltd.
+86-18621343501 product@acmec-e.com China 33301 58
Jilin Chinese Academy of Sciences-yanshen Technology
18143011203 info@chemextension.com China 42052 58
Aladdin Scientific
tp@aladdinsci.com United States 54746 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
13343047651 admin@zlchemi.com China 3689 58
Compound Net Biotechnology Inc.
15266686121 sales@compound-net.com China 2913 58
SHANGHAI KEAN TECHNOLOGY CO., LTD.
+8613817748580 cooperation@kean-chem.com China 40048 58

View Lastest Price from 2,2'-dithiobis(ethylamine) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Cystamine pictures 2026-07-27 Cystamine
51-85-4
$34.00-73.00 99.84% 10g TargetMol Chemicals Inc.
  • Cystamine pictures
  • Cystamine
    51-85-4
  • $34.00-73.00
  • 99.84%
  • TargetMol Chemicals Inc.

2,2'-dithiobis(ethylamine) Spectrum

2,2'-dithiobis(ethylamine) 2,2-DIAMINODIETHYLDISULPHIDE 2,2'-Dithiobisethanamine Cystinamine Decarboxycystine L-1591 Mercamine disulfide Ethanamine, 2,2'-dithiobis- 2-(2-aminoethyldisulfanyl)ethanamine 2,2'-Dithiodiethylamine 2,2'-disulfanediyldiethanamine 51-85-4