L-Cysteinyl-L-tyrosine CAS 1089-23-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1089-23-2 |
| Molecular Formula | C12H16N2O4S |
| Molecular Weight | 284.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
L-Cysteinyl-L-tyrosine (CAS 1089-23-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C12H16N2O4S. Molecular weight: 284.33 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H16N2O4S |
| Molecular Weight | 284.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related L Standards
- 3-Cysteinyl Acetaminophen (CAS 53446-10-9)
- L- Cysteinyl- L- cysteinyl- L- α- glutamyl- L- tyrosyl- L- cysteinyl- L- cysteinyl- L- asparaginyl- L- prolyl- L- alanyl- L- cysteinyl- L- threonylglycyl- L- cysteinyl-L- Tyrosine Trifluoroacetate (CAS 1638632-09-3)
- 7-D-cysteinyl-lanreotide (CAS CATO-C4X-237018)
Recommended Standards
- 2,3-Dihydro-3-(4-methoxyphenyl)-2-thioxo-4(1H)-quinazolinone (CAS 1031-88-5)
- 3-(cyclopentanesulfonyl)-4-methoxybenzoic acid (CAS 1096927-56-8)
- 2-Mercapto-3-(2-methoxyphenyl)quinazolin-4(3H)-one (CAS 1031-67-0)
- 4-(Aminomethyl)-3-(difluoromethyl)-5-methylpyridin-2-ol (CAS 1805449-86-8)
- 3-Phenyl-1,2,4-oxadiazol-5-yl dibutylcarbamodithioate (CAS 62652-49-7)
- 4-(3-(4-Chlorophenyl)-1H-indol-2-yl)benzenesulfonamide (CAS 500870-88-2)
- Ilaprazole Impurity 14 (CAS CATO-C4X-113014)
- (2-Cyclopropylpyrimidin-4-yl)methanol (CAS 1240725-54-5)
- Methyl 4-(2-formylphenoxy)benzoate (CAS 934691-78-8)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
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