Other grades of this product :
| DL-Cystine Basic information |
| DL-Cystine Chemical Properties |
| 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 | | CAS DataBase Reference | 923-32-0(CAS DataBase Reference) | | NIST Chemistry Reference | Dl-cystine(923-32-0) |
| DL-Cystine Usage And Synthesis |
| 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 |
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