Dihydro-5-chloro-5-methyl-2(3H)-furanone CAS 40125-55-1
| CAS No. | 40125-55-1 |
| Molecular Formula | C5H7ClO2 |
| Molecular Weight | 134.56 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 Dihydro-5-chloro-5-methyl-2(3H)-furanone.
Dihydro-5-chloro-5-methyl-2(3H)-furanone (CAS 40125-55-1), molecular formula C5H7ClO2 and molecular weight 134.56 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Dihydro-5-chloro-5-methyl-2(3H)-furanone (C5H7ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Dihydro-5-chloro-5-methyl-2(3H)-furanone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H7ClO2 |
| Molecular Weight | 134.56 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
Related Dihydro Standards
- 4',5'-Dihydro-1H,3'H-2,2'-bipyrrole (CAS 10087-65-7)
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- 2-Methyl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine (CAS 1211587-93-7)
- (R)-6,7-dihydro-5H-cyclopenta[b]pyridin-7-amine (CAS 1228571-16-1)
- 4-Methyl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine (CAS 1256806-29-7)
- 6,7-Dihydro-5H-cyclopenta[c]pyridin-5-amine (CAS 1260762-34-2)
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Recommended Standards
- Cyclopropylmethyl Carbonochloridate (CAS 57282-34-5)
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- methyl 2-chlorobut-3-enoate (CAS 51171-63-2)
- 2-(4-Fluorophenyl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylic acid (CAS 1395492-92-8)
- (1,5-Cyclooctadiene)tris(trimethylphosphine)iridium(1+) chloride (CAS 118494-48-7)
- 2-(2,4-Dichlorophenyl)-5-methyloxazole-4-carboxylic Acid (CAS 1457041-27-8)
- Topiramate Impurity 10 (CAS 66900-93-4)
- Diethylenetriaminepentaaceticacidiron(III)disodiumsalt (CAS 19529-38-5)
- 3-Chloro-2,6-dibromo-4-fluorophenyl isothiocyanate (CAS 1000572-48-4)
- 5-chloro-2-[(1-methoxypropan-2-yl)oxy]aniline (CAS 946718-95-2)
- 1-{4-[(2E)-3-(2,6-Dichlorophenyl)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 1365988-74-4)
- 870778-88-4 {2-Methoxy-6-[(propan-2-yl)oxy]phenyl}boronic acid DTXSID20584630 (CAS 870778-88-4)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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