1-Bromo-2,3-dichlorobutane CAS 38585-79-4
| CAS No. | 38585-79-4 |
| Molecular Formula | C4H7BrCl2 |
| Molecular Weight | 205.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Bromo-2,3-dichlorobutane is closely related to chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Bromo-2,3-dichlorobutane (CAS 38585-79-4), molecular formula C4H7BrCl2 and molecular weight 205.91 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Bromo-2,3-dichlorobutane (C4H7BrCl2) is characterized by chlorine/bromine 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), 1-Bromo-2,3-dichlorobutane 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 | C4H7BrCl2 |
| Molecular Weight | 205.91 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) | 0.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 4-Bromo-1,2-dichlorobutane (CAS 26204-05-7)
- 2-Bromo-2,3,3,3-tetrafluoropropanenitrile (CAS 234443-23-3)
- 1-Bromo-1,1-dichloro-2-propanone (CAS 1751-16-2)
- 3-Bromo-1,1,1-trifluoropropan-2-one oxime (CAS 117341-57-8)
- Methyl 2-bromo-4-oxazolecarboxylate (CAS 1092351-94-4)
- 2-Bromo-4-methyl-oxazole-5-carboxylic acid (CAS 1140626-96-5)
- 5-Bromo-2-methyloxazole-4-carboxylic acid (CAS 1209573-86-3)
- 3-Bromo-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 130742-22-2)
Recommended Standards
- 1,3-Dibromopropane-1,1,3,3-d4 (CAS 64528-94-5)
- (4-(Difluoromethoxy)-2-fluorophenyl)boronic acid (CAS 1004775-34-1)
- (5-Amino-2,4-dichlorophenyl)boronic acid (CAS 948592-69-6)
- (6-Amino-4-(trifluoromethyl)pyridin-3-yl)boronic acid (CAS 1045861-32-2)
- 5,6,7,8-Tetrafluoro-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1743-87-9)
- 1-Bromo-4-methoxy-2-phenylmethoxybenzene (CAS 150356-67-5)
- (2R,3R)-1-(2-methoxyethyl)-2-(3-methylthiophen-2-yl)-6-oxopiperidine-3-carboxylic acid (CAS 1212305-26-4)
- 3,3-Dimethyl-4-(propan-2-ylidene)oxetan-2-one (CAS 3173-79-3)
- n-Methyl-1-(quinolin-2-yl)methanamine (CAS 136727-11-2)
- n-(2-Aminoethyl)thiophene-2-carboxamide (CAS 58827-15-9)
- 5-Nitro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid (CAS 17687-24-0)
- 1-(3-Methyl-1,2,4-oxadiazol-5-yl)cyclopropanaminium 2,2,2-trifluoroacetate (CAS 1215107-54-2)
- 1-(2,7-Dimethylimidazo[1,2-a]pyridin-3-yl)-2-[(4-fluorophenyl)sulfanyl]-1-ethanone (CAS 478042-05-6)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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