2-Chloro-5-hydroxybenzaldehyde CAS 7310-94-3
| CAS No. | 7310-94-3 |
| Molecular Formula | C7H5ClO2 |
| Molecular Weight | 156.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloro-5-hydroxybenzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 156.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 2-Chloro-5-hydroxybenzaldehyde (CAS 7310-94-3), a certified reference material (molecular formula C7H5ClO2, MW 156.57 g/mol) for analytical method development and quality control.
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-Chloro-5-hydroxybenzaldehyde 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 | C7H5ClO2 |
| Molecular Weight | 156.57 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.) | 1959 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-6-methylcyclohexa-2,5-diene-1,4-dione (CAS 1123-64-4)
- 3-Chloro-5-methylpyrazine-2-carbaldehyde (CAS 1197235-63-4)
- 2-Chloro-5,7-dihydrofuro[3,4-d]pyrimidine (CAS 1233932-44-9)
- 2-(3-Chloro-5-methyl-1H-1,2,4-triazol-1-yl)acetonitrile (CAS 1322605-27-5)
- 3-(3-Chloro-1H-1,2,4-triazol-1-yl)propanenitrile (CAS 1351698-84-4)
- 4-Chloro-5,7-dihydrofuro[3,4-d]pyrimidine (CAS 1379179-87-9)
- 3-Chloro-6-methylpyrazine-2-carbaldehyde (CAS 1384678-57-2)
- 5-Chloro-3-methylpyrazine-2-carbaldehyde (CAS 1393533-77-1)
Recommended Standards
- 2-Chloro-4-methylpyrimidine-5-carbaldehyde (CAS 933685-85-9)
- 2-Chloro-5-methylcyclohexa-2,5-diene-1,4-dione (CAS 19832-87-2)
- 2-Chloro-4-hydroxybenzaldehyde (CAS 56962-11-9)
- 2-Chloro-6-methylpyrimidine-4-carbaldehyde (CAS 933720-98-0)
- Methyl 1-Methylpyrazole-3-carboxylate (CAS 17827-61-1)
- 1,4,4-Trimethylpyrrolidin-3-ol (CAS 89855-14-1)
- 887406-90-8 Methyl 4-[(3-methoxy-3-oxopropyl)(prop-2-en-1-yl)amino]butanoate DTXSID50652639 (CAS 887406-90-8)
- tert-Butyl (1-(4-amino-1-methyl-1H-pyrazol-5-yl)pyrrolidin-3-yl)carbamate (CAS 1363405-36-0)
- 1-(3,4-Dichlorobenzyl)-5-(4-methylpiperazine-1-carbonyl)pyridin-2(1H)-one (CAS 338781-34-3)
- 2-(6-Methylpyridin-3-yl)propan-2-amine (CAS 566155-78-0)
- 3-Epioleanolic acid (CAS 25499-90-5)
- 2,4,6-Trichlorobenzene-1,3,5-triol (CAS 56961-23-0)
- 2-(4-(Difluoromethyl)-5-methyl-6-(trifluoromethoxy)pyridin-3-yl)acetonitrile (CAS 1361837-45-7)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
Why CATO?
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