4-Chlorobut-2-yn-1-yl 2-cyclohexyl-2-hydroxy-2-phenylacetate CAS 127755-21-9
| CAS No. | 127755-21-9 |
| Molecular Formula | C18H21ClO3 |
| Molecular Weight | 320.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chlorobut-2-yn-1-yl 2-cyclohexyl-2-hydroxy-2-phenylacetate (C18H21ClO3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 320.81 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-Chlorobut-2-yn-1-yl 2-cyclohexyl-2-hydroxy-2-phenylacetate (CAS 127755-21-9) is a high-purity analytical reference standard with the molecular formula C18H21ClO3 and a molecular weight of 320.81 g/mol.
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 4-Chlorobut-2-yn-1-yl 2-cyclohexyl-2-hydroxy-2-phenylacetate 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 | C18H21ClO3 |
| Molecular Weight | 320.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
Related Chlorobut Standards
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Recommended Standards
- Ethyl 4-(((2-chlorophenyl)(methyl)amino)methyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate (CAS 1160245-32-8)
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- 73216-93-0 (2-Aminophenyl)-N-((((4-chlorophenyl)amino)thioxomethyl)amino)formamide MFCD06199195 (CAS 73216-93-0)
- Tert-butyl 4-(2-chlorophenyl)-4-cyanopiperidine-1-carboxylate (CAS 186347-31-9)
- 2-Propenenitrile, polymer with diethenylbenzene and ethenylethylbenzene (CAS 9078-84-6)
- 1-Boc-4-(3-methoxy-4-nitrophenyl)piperazine (CAS 1017782-79-4)
- 1-(Prop-2-en-1-yl)cyclohexane-1-carboxylic acid (CAS 72335-50-3)
- (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(2-fluorophenyl)methanone (CAS 898756-24-6)
- trifluoroacetic acid ethyl 2-fluoro-2-(pyrrolidin-3-yl)acetate (CAS 1955499-73-6)
- Methyl 3-ethyl-2,4-dioxo-1,3-diazaspiro[4.5]decane-8-carboxylate (CAS 1707563-04-9)
- 5-Amino-1-(1-(4-chlorophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1630980-41-4)
- (4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide (CAS 257943-19-4)
- 3-Chloro-5-methylpicolinaldehyde (CAS 780801-56-1)
- D-Ile17-Tirzepatide (CAS CATO-CPTD788917)
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