D-Cystine
Synonym(s):(S,S)-3,3′-Dithiobis(2-aminopropionic acid)
- CAS NO.：349-46-2
- Empirical Formula: C6H12N2O4S2
- Molecular Weight: 240.3
- MDL number: MFCD00002610
- EINECS: 206-486-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-06-12 17:09:27
What is D-Cystine?
Description
D-cystine is a thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
Chemical properties
White crystals
The Uses of D-Cystine
D-Cystine increases the rate of fertilization of mouse oocytes.
Definition
ChEBI: The D-enantiomer of cystine.
Biological Functions
D-Cystine functions as an antioxidant and protects tissues against radiation and pollution, slowing the aging process. It also aids protein synthesis. Cystine is abundant in many proteins of skeletal tissues and skin, and found in insulin and digestive enzymes chromotrypsinogen A, papain, and trypsinogen.
Properties of D-Cystine
| Melting point: | 265 °C (dec.) (lit.) |
| Boiling point: | 468.2±45.0 °C(Predicted) |
| alpha | 214 º (c=1, 1 N HCl) |
| Density | 1.358 (estimate) |
| refractive index | 1.6000 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Aqueous Acid (Slightly), Aqueous Base (Slightly) |
| pka | 1.70±0.10(Predicted) |
| form | Fine Crystalline Powder |
| color | White |
| optical activity | [α]20/D +212°, c = 1 in 1 M HCl |
| Water Solubility | 0.057 g/L (25 ºC) |
| Merck | 14,2782 |
| BRN | 1728093 |
| CAS DataBase Reference | 349-46-2(CAS DataBase Reference) |
Safety information for D-Cystine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for D-Cystine
| InChIKey | LEVWYRKDKASIDU-QWWZWVQMSA-N |
Abamectin manufacturer
JSK Chemicals
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product: 349-46-2 D-Cystine,98% 99%
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