3-(4-Bromophenyl)-4-(4-methylbenzoyl)-1H-pyrrole CAS 478031-39-9
| CAS No. | 478031-39-9 |
| Molecular Formula | C18H14BrNO |
| Molecular Weight | 340.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(4-Bromophenyl)-4-(4-methylbenzoyl)-1H-pyrrole 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.
3-(4-Bromophenyl)-4-(4-methylbenzoyl)-1H-pyrrole (CAS 478031-39-9), molecular formula C18H14BrNO and molecular weight 340.21 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 3-(4-Bromophenyl)-4-(4-methylbenzoyl)-1H-pyrrole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 340.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H14BrNO |
| Molecular Weight | 340.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromophenyl Standards
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Recommended Standards
- 3-(4-Bromobenzoyl)-4-(4-methylphenyl)-1H-pyrrole (CAS 478031-45-7)
- 4-Chloro-7-(3-chlorophenyl)-5-phenyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 890091-44-8)
- 2-Amino-6-(2-chlorophenyl)-4-(4-chlorophenyl)nicotinonitrile (CAS 338794-11-9)
- 4-Chloro-7-(4-chlorophenyl)-5-phenyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 507273-41-8)
- Aloe-emodin-3-(hydroxymethyl)-O-beta-D-glucopyranoside (CAS 50488-89-6)
- (4-Butoxyphenyl)(pyridin-3-yl)methanone (CAS 1187171-49-8)
- 2-Amino-4-propyl-1H-pyrrole-3-carbonitrile (CAS 217954-67-1)
- Benzbromarone Impurity 19 (CAS 51073-14-4)
- 2-(4-bromopyridin-2-yl)-2-methylpropan-1-ol (CAS 1240620-94-3)
- (2-Methoxy-pyridin-4-yl)-methyl-amine hydrochloride (CAS 1965309-86-7)
- Tert-butyl (R)-2-isopropyl-5-oxopyrrolidine-1-carboxylate (CAS 147778-56-1)
- 2-(Naphthalen-2-yloxy)-N'-(2-oxoindolin-3-ylidene)acetohydrazide (CAS 81215-46-5)
- DL-Homocystine (CAS 870-93-9)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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