(2-Chloroacetyl)tyrosine CAS 23965-60-8
| CAS No. | 23965-60-8 |
| Molecular Formula | C11H12ClNO4 |
| Molecular Weight | 257.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2-Chloroacetyl)tyrosine (CAS 23965-60-8), molecular formula C11H12ClNO4 and molecular weight 257.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H12ClNO4, (2-Chloroacetyl)tyrosine contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (2-Chloroacetyl)tyrosine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H12ClNO4 |
| Molecular Weight | 257.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloroacetyl Standards
- N-(2-Chloroacetyl)-L-tyrosine (CAS 1145-56-8)
- n-{2-[4-(2-chloroacetyl)-2-fluorophenyl]ethyl}acetamide (CAS 1087784-55-1)
- n-{2-[5-(2-chloroacetyl)-2-fluorophenyl]ethyl}acetamide (CAS 1384427-92-2)
- Methyl 3-[3-(2-chloroacetyl)-2,5-dimethyl-1h-pyrrol-1-yl]propanoate (CAS 757219-83-3)
- n'-(2-Chloroacetyl)-3-nitrobenzohydrazide (CAS 63002-52-8)
- n'-(2-Chloroacetyl)-4-nitrobenzohydrazide (CAS 50677-28-6)
- n-[4-(2-chloroacetyl)-2-(methylsulfanyl)phenyl]acetamide (CAS 1146290-42-7)
- n-(2-Chloroacetyl)-3-(phenylthio)propanamide (CAS 565194-61-8)
Recommended Standards
- (2-(4-Chloro-3-methylphenoxy)acetyl)glycine (CAS 927994-54-5)
- 1-Amino-3-chloroanthracene-9,10-dione (CAS 24305-50-8)
- (((Benzyloxy)carbonyl)amino)chloromethyl acetate (CAS 64356-76-9)
- 1-Amino-4-chloroanthracene-9,10-dione (CAS 2872-47-1)
- 5-Chloro-6-((3,3-difluorocyclobutyl)methoxy)pyridin-3-ol (CAS 1355066-37-3)
- 1-(6-Chloropyridin-3-yl)-cyclopentanecarbonitrile (CAS 1935572-80-7)
- Methyl 4-bromo-3-cyano-5-(difluoromethyl)benzoate (CAS 1807029-99-7)
- 4-Chloro-5-methoxypyridine-2-carbaldehyde (CAS 1060801-63-9)
- Ethyl 1-(4-chlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylate (CAS 91396-27-9)
- 7-Isopropyl-1,3-dihydro-2H-indol-2-one, 97% (CAS 1260788-68-8)
- Exo-8-(tert-Butoxycarbonyl)-8-azabicyclo[3.2.1]octane-3-carboxylic acid (CAS 280762-00-7)
- 3-Amino-1-benzhydryl-azetidine mesylate (CAS 1373253-26-9)
- 2-Fuoro-6-iodobenzamide (CAS 676445-27-5)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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