2-Methyl-furan-3-carbonyl chloride CAS 5555-00-0
| CAS No. | 5555-00-0 |
| Molecular Formula | C6H5ClO2 |
| Molecular Weight | 144.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Methyl-furan-3-carbonyl chloride.
2-Methyl-furan-3-carbonyl chloride (CAS 5555-00-0), molecular formula C6H5ClO2 and molecular weight 144.56 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Methyl-furan-3-carbonyl chloride (C6H5ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 144.56 g/mol, it falls into the low-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H5ClO2 |
| Molecular Weight | 144.56 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- Furan Impurity 2 (CAS 21788-49-8)
- 2-(Furan-2-yl)pyridine (CAS 55484-03-2)
- 4-(furan-2-yl)pyridine (CAS 55484-04-3)
- 699-18-3 Furan, 2-(2-nitroethenyl)- (9CI) Furan, 2-(2-nitrovinyl)- 2-(2-Nitrovinyl)furan AI3-18224 CCRIS 5662 Ethylene, 1-(2-furyl)-2-nitro- 1-(alpha-Furyl)-2-nitroethylene 1-(2-Furyl)-2-nitroethylene 2-Furylnitroethylene beta-Nitrovinylfuran NSC 5650 (CAS 699-18-3)
- 2-(Furan-2-yl)pyrimidine (CAS 27110-82-3)
- 2-(Furan-3-yl)pyrimidine (CAS 57059-10-6)
- 5-(Furan-3-yl)pyrimidine (CAS 560994-06-1)
- 2-(furan-2-yl)pyrazine (CAS 32736-95-1)
Recommended Standards
- 2-Chloropyrimidine-4-methanol (CAS 34953-87-2)
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- 2-Fluoro-5-nitro-1,3,4-thiadiazole (CAS 544705-79-5)
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- 1-(4-Methoxynaphthalen-1-yl)ethan-1-ol (CAS 165602-58-4)
- 6-Amino-2,5-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 900319-17-7)
- 2-Ethylbenzene-1,3,5-triol (CAS 94632-41-4)
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- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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