1-(3-Chloro-4-hydroxy-5-methylphenyl)ethan-1-one CAS 54556-95-5
| CAS No. | 54556-95-5 |
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(3-Chloro-4-hydroxy-5-methylphenyl)ethan-1-one 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.
1-(3-Chloro-4-hydroxy-5-methylphenyl)ethan-1-one (CAS 54556-95-5), molecular formula C9H9ClO2 and molecular weight 184.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9ClO2, 1-(3-Chloro-4-hydroxy-5-methylphenyl)ethan-1-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(3-Chloro-4-methylphenyl)acetic acid (CAS 1000515-63-8)
- 2-(2-chloro-3-methylphenyl)acetic acid (CAS 1000518-49-9)
- 2-Chloro-5-methoxy-4-methylbenzaldehyde (CAS 100948-46-7)
- 2-Chloro-6-(cyclopropylmethoxy)pyrazine (CAS 1019493-28-7)
- 3-Chloro-6-(cyclopropylmethoxy)pyridazine (CAS 1019619-79-4)
- 2-Chloro-6-ethoxybenzaldehyde (CAS 1021230-95-4)
- 3-Chloro-4-methoxybenzimidamide (CAS 102151-35-9)
- 3-Chloro-2-methylbenzhydrazide (CAS 1022873-06-8)
Recommended Standards
- 1-(3-Chloro-2-methylphenyl)urea (CAS 98490-67-6)
- 1-(3-Chloro-4-hydroxyphenyl)propan-1-one (CAS 2892-27-5)
- 1-(3-Chloro-2-methoxyphenyl)ethanone (CAS 99585-09-8)
- 1-(3-Chloro-4-hydroxyphenyl)propan-2-one (CAS 84023-32-5)
- 1,3-Diethyl 2-[2-(3-nitrophenyl)hydrazin-1-ylidene]propanedioate (CAS 13631-94-2)
- 9-Allyl-2-(4-(3,3,3-triphenylpropyl)piperazin-1-yl)-9H-purine dimethanesulfonate (CAS 37425-13-1)
- Propanenitrile,3-[(2-aminoethyl)amino]- (CAS 22584-31-2)
- 6-Amino-5-methylpyridin-3-ol (CAS 193746-18-8)
- Methyl 2-(4-methoxyphenyl)pyrimidine-5-carboxylate (CAS 1068977-07-0)
- Baloxavir Impurity 57 (CAS 2496644-37-0)
- 2-[(2-Fluorophenoxy)methyl]benzoic acid (CAS 1156944-71-6)
- 2-(Tribromomethyl)quinoxaline (CAS 7251-36-7)
- Trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl)silane (CAS 165904-20-1)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com