2-Methylbut-3-enoyl chloride CAS 24560-24-5
| CAS No. | 24560-24-5 |
| Molecular Formula | C5H7ClO |
| Molecular Weight | 118.56 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-Methylbut-3-enoyl chloride.
2-Methylbut-3-enoyl chloride (CAS 24560-24-5), molecular formula C5H7ClO and molecular weight 118.56 g/mol, is a CATO reference standard with documented purity and traceability.
2-Methylbut-3-enoyl chloride (C5H7ClO) contains a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-Methylbut-3-enoyl chloride 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 | C5H7ClO |
| Molecular Weight | 118.56 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
Related Methylbut Standards
- (Z)-2-Methylbut-2-enoyl chloride (CAS 62529-65-1)
- 2-Methylbut-2-enoyl chloride (CAS 49651-33-4)
- 3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5 (CAS 3350-78-5)
- 2-ethyl-2-methylbut-3-en-1-ol (CAS 678144-86-0)
- Methyl 3-methylbut-3-enoate (CAS 25859-52-3)
- Methyl 2-methylbut-3-ynoate (CAS 387401-01-6)
- n-(2-Methylbut-3-yn-2-yl)acetamide (CAS 21604-47-7)
- (2-Methylbut-3-yn-2-yl)(propan-2-yl)amine (CAS 1189-86-2)
Recommended Standards
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- 2-Cyclopropylacetyl Chloride (CAS 54322-65-5)
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- 2-Chloro-1-cyclopropylethan-1-one (CAS 7379-14-8)
- Chlorthal-Dimethyl (CAS 1861-32-1)
- 2-(2-Methanesulfonylethoxy)ethan-1-amine (CAS 947723-19-5)
- 1142199-04-9 (4E)-3-(Chloromethyl)-4-(2,4-dimethoxybenzylidene)isoxazol-5(4H)-one MFCD12027787 (CAS 1142199-04-9)
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