Basic information
- CAS
349-46-2- Standard SMILES
N[C@H](CSSC[C@@H](N)C(=O)O)C(=O)O- InChIKey
LEVWYRKDKASIDU-QWWZWVQMSA-N- Molecular formula
- C6H12N2O4S2
- Average molar mass
- 240.3 g/mol
- Monoisotopic mass
- 240.02384922
Names & identifiers
- Preferred name
- D-Cystine
- IUPAC
- (2S)-2-amino-3-[[(2S)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
- English name
- D-Cystine
- Molecular formula
- C6H12N2O4S2
- Molecular weight
- 240.3
Names & synonyms
D-Cystine349-46-2(S)-CystineCystine, D-Cystine, dKX1RHN0Y0BDTXSID301031752CHEBI:35494(2S)-2-amino-3-[[(2S)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid(2S)-2-amino-3-{[(2S)-2-amino-2-carboxyethyl]disulfanyl}propanoic acid(2S)-2-amino-3-(((2S)-2-amino-2-carboxyethyl)disulfanyl)propanoic acidCystine D-
Show more names
(H-D-CYS-OH)2(2S,2'S)-3,3'-disulfanediylbis(2-aminopropanoic acid)(D-Cys)2H-D-CYSTINED(+)-CYSTINED-Cystine99%D-Cystine-OH
RefChem:1082871DTXCID901516760(2S,2'S)-3,3'-disulfanediylbis(2-aminopropanoic acid);D-cystine(2S)-2-azaniumyl-3-(((2S)-2-azaniumyl-2-carboxylatoethyl)disulfanyl)propanoate206-486-2Cystine D-formC6H12N2O4S2MFCD00002610
Database identifiers
- CAS
349-46-2、923-32-0- PubChem CID
- 6857538
- DTXSID
DTXSID301031752- ChEBI
CHEBI:35494- UNII
- 06681CV9GH、KX1RHN0Y0B
- EC Number
- 206-486-2
- Nikkaji
- J9.193F
Properties
Computed structural properties
- XLogP
- -6.3
- Topological polar surface area
- 177 Ų
- Hydrogen bond donors
- 4
- Hydrogen bond acceptors
- 8
- Rotatable bonds
- 7
- Heavy atoms
- 14
- Formal charge
- 0
- Complexity
- 192
Experimental & physicochemical properties
Physical DescriptionSolid; [Merck Index] White odorless powder; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 265 °C · 265 °C (dec.) (lit.)
- alpha
- 214 · 214 º (c=1, 1 N HCl)
- Boiling point
- 468.2 · 468.2±45.0 °C(Predicted)
- Density
- 1.358 · 1.358 (estimate)
- refractive index
- 1.6 · 1.6000 (estimate)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- Aqueous Acid (Slightly), Aqueous Base (Slightly)
- form
- Fine Crystalline Powder
- pka
- 1.7 · 1.70±0.10(Predicted)
- color
- White
- optical activity
- 20 · [α]20/D +212°, c = 1 in 1 M HCl
- Water Solubility
- 0.057 g/L · 0.057 g/L (25 ºC)
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 50% (1 of 2) of reports.
Warning
H302 (50%): Harmful if swallowed [Warning Acute toxicity, oral]；H315 (50%): Causes skin irritation [Warning Skin corrosion/irritation]；H319 (50%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H335 (50%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 2 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Reported as not meeting GHS hazard criteria per 1 of 2 reports by companies.；There is 1 notification provided by 1 of 2 reports by companies with hazard statement code(s).；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Regulatory InformationD-Cystine: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards SummaryMay cause irritation; [Alfa Aesar MSDS]
Hazard Classes and CategoriesAcute Tox. 4 (50%)；Skin Irrit. 2 (50%)；Eye Irrit. 2A (50%)；STOT SE 3 (50%)
Regulatory information
Regulatory Information
Chemistry & industry
Uses & manufacturing
Uses
Amino acid not essential for humans; [Merck Index]
Use (kg; approx.) in Germany (2009): >500；Consumption (g per capita; approx.) in Germany (2009): 0.00611；Calculated removal (%): 75.1
Applications
DescriptionD-cystine is a thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
UsesD-Cystine increases the rate of fertilization of mouse oocytes.
Suppliers100 total
北京华美互利生物化工010-56205725 · [email protected]
衢州润东化工有限公司0570-8789886 18892685668 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
广州隽沐生物科技股份有限公司020-36607679; 13502246435 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
上海迈瑞尔生化科技有限公司4006356688 18621169109 · [email protected]
武汉易泰科技有限公司上海分公司18930552037 · [email protected]
宁波亿诺化学品有限公司86-574-27787657 · [email protected]
阿法埃莎（中国）化学有限公司400-6106006 · [email protected]
Related reactions
1 records
Compound notes
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