DL-Cysteic acid manufacturers
- DL-CYSTEIC ACID
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- $2.00
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2020-01-15
- CAS:3024-83-7
- Min. Order: 1g
- Purity: 98%min
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| | DL-Cysteic acid Basic information |
| | DL-Cysteic acid Chemical Properties |
| Melting point | 273°C (rough estimate) | | density | 1.433 (estimate) | | refractive index | 1.5130 (estimate) | | form | solid | | pka | 1.3, 1.9, 8.70(at 25℃) |
| | DL-Cysteic acid Usage And Synthesis |
| Definition | ChEBI: Cysteic acid is an amino sulfonic acid that is the sulfonic acid analogue of cysteine. It has a role as an animal metabolite. It is an alanine derivative, an amino sulfonic acid, a carboxyalkanesulfonic acid, a cysteine derivative and a non-proteinogenic alpha-amino acid. | | Purification Methods | Likely impurities are cystine and oxides of cysteine. Crystallise the acid from water by adding 2 volumes of EtOH. It crystallises from H2O as the monohydrate. When recrystallised from aqueous MeOH it has m 264-266o, and the anhydrous acid has m ~260o(dec). [Chapeville & Formageot Biochim Biophys Acta 26 538 1957, Gortner & Hoffman J Biol Chem 72 435 1927, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p1908 1961.] |
| | DL-Cysteic acid Preparation Products And Raw materials |
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