1,1-Dibromo-2-(chloromethyl)cyclopropane CAS 67003-20-7
| CAS No. | 67003-20-7 |
| Molecular Formula | C4H5Br2Cl |
| Molecular Weight | 248.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,1-Dibromo-2-(chloromethyl)cyclopropane is closely related to chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,1-Dibromo-2-(chloromethyl)cyclopropane (CAS 67003-20-7), molecular formula C4H5Br2Cl and molecular weight 248.34 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,1-Dibromo-2-(chloromethyl)cyclopropane (C4H5Br2Cl) contains chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 248.34 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 1,1-Dibromo-2-(chloromethyl)cyclopropane 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 | C4H5Br2Cl |
| Molecular Weight | 248.34 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl/Br-containing |
Related Dibromo Standards
- 2,3-dibromo-1,4-butanediol (CAS 1947-58-6)
- 2,2-Dibromo-2-nitroethanol (CAS 69094-18-4)
- 4,5-Dibromo-1H-pyrrole-2-carbonitrile (CAS 34649-19-9)
- 1,2-Dibromo-3-methylbenzene (CAS 61563-25-5)
- 2,3-Dibromo-3-methylbutan-1-ol (CAS 100606-78-8)
- 2,3-Dibromo-2-methylpropanoic acid (CAS 33673-74-4)
- 2,4-Dibromo-butyric acid (CAS 63164-16-9)
- trans-2,3-Dibromo-2-butene-1,4-diol (CAS 21285-46-1)
Recommended Standards
- 1-(3-Methoxyphenyl)-4,4-dimethyl-1,4-dihydropyrimidine-2-thiol (CAS 259683-70-0)
- 1-{4-[(4-ethyl-4,5-dihydro-1,3-thiazol-2-yl)amino]phenyl}ethan-1-one (CAS 380346-04-3)
- 1-(3-Fluoro-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone (CAS 27452-16-0)
- 1-{4-[(5-ethyl-4,5-dihydro-1,3-thiazol-2-yl)amino]phenyl}ethan-1-one (CAS 854137-76-1)
- 4-(Pyren-1-yl)aniline (CAS 87393-65-5)
- 2-Methylcyclohexa-2,5-dienecarboxylic acid (CAS 55886-48-1)
- rel-(1S,3R)-3-aminocyclopentane-1-carbonitrile (CAS 884006-65-9)
- 6-Amino-5-methoxy-1-methyl-1H-benzo[d]imidazol-2(3H)-one (CAS 124424-20-0)
- (R)-1-(2-chlorophenyl)ethyl (5-(4-bromophenyl)-3-methylisoxazol-4-yl)carbamate (CAS 1228690-20-7)
- (1-(O-tolyl)-1H-pyrazol-4-yl)boronic acid (CAS 2225155-51-9)
- 2-Bromo-5-ethoxy-4-propoxybenzaldehyde (CAS 692266-32-3)
- 2-Acetamido-4-(4H-1,2,4-triazol-4-yl)benzoic acid (CAS 948007-77-0)
- 2-(3-Bromophenyl)-N-(2-(ethylamino)ethyl)acetamide hydrochloride (CAS 1593573-52-4)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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