1H-INDOLE-2,3-DIONE, 7-BROMO- 20780-74-9 7-BROMO-2,3-DIOXOINDOLINE 7-BROMOINDOLE-1H-2,3-DIONE 7-BROMOINDOLINE-2,3-DIONE 7-BROMOISATIN BC004132 CAS 20780-74-9
| CAS No. | 20780-74-9 |
| Molecular Formula | C8H10BrNO2 |
| Molecular Weight | 232.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1H-INDOLE-2,3-DIONE, 7-BROMO- 20780-74-9 7-BROMO-2,3-DIOXOINDOLINE 7-BROMOINDOLE-1H-2,3-DIONE 7-BROMOINDOLINE-2,3-DIONE 7-BROMOISATIN BC004132 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.
1H-INDOLE-2,3-DIONE, 7-BROMO- 20780-74-9 7-BROMO-2,3-DIOXOINDOLINE 7-BROMOINDOLE-1H-2,3-DIONE 7-BROMOINDOLINE-2,3-DIONE 7-BROMOISATIN BC004132 (CAS 20780-74-9), molecular formula C8H10BrNO2 and molecular weight 232.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1H-INDOLE-2,3-DIONE, 7-BROMO- 20780-74-9 7-BROMO-2,3-DIOXOINDOLINE 7-BROMOINDOLE-1H-2,3-DIONE 7-BROMOINDOLINE-2,3-DIONE 7-BROMOISATIN BC004132 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C8H10BrNO2 |
| Molecular Weight | 232.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related H Standards
- 3-(1H-indole-3-carboxamido)propanoic acid (CAS 171817-97-3)
- (1H-Indole-2-carbonyl)alanine (CAS 957005-56-0)
- 1H-indole-5,6-diyl diacetate (CAS 15069-79-1)
- 2,2'-(1H-Indole-3,6-diyl)diacetic acid (CAS 857777-65-2)
- 1H-Indole-1-carboxylic acid, 3-hydroxy-, 1,1-dimethylethyl ester (CAS 369595-02-8)
- 1H-Indole-3-carbonitrile, 4-bromo-1-methyl- (CAS 1521852-53-8)
- 1H-indole, 7-fluoro-2,3-dihydro-3-(methylthio)-4-nitro- (CAS 548458-22-6)
- 1H-Indole-3-carbonitrile, 5,7-dichloro-1-methyl- (CAS 1539840-84-0)
Recommended Standards
- trans-2-Butenylpyrophosphate (CAS 22342-68-3)
- 2439-85-2 N-Bromophthalimide 1H-Isoindole-1,3(2H)-dione, 2-bromo- AI3-18212 EINECS 219-467-9 NSC 3525 (CAS 2439-85-2)
- O-(5-bromo-2-methoxybenzyl)hydroxylamine (CAS 23993-41-1)
- 1,1,1,3,3-Pentafluoro-2-(trifluoromethyl)-4-oxapentane 2-[Difluoro(methoxy)methyl]-1,1,1,3,3,3-hexafluoropropane 382-26-3 Methyl 1,1,3,3,3-pentafluoro-2-(trifluoromethyl)-propyl ether Methyl 2H-pentafluoro-2-(trifluoromethyl)propyl ether 97% (CAS 382-26-3)
- Cyclopentyl 3-(thiomorpholinomethyl)phenyl ketone (CAS 898788-11-9)
- (4-(Methylselanyl)phenyl)(3,4,5-trimethoxyphenyl)methanone (CAS 2123478-19-1)
- N-(benzo[d]thiazol-2-yl)-2-bromopropanamide (CAS 1381856-75-2)
- 3-Aminomethyl-5-fluorobenzoic Acid Methyl Ester (CAS 886732-31-6)
- S-(p-tolyl) 2,2,2-trifluoroethanethioate (CAS 75072-07-0)
- 2-Aminobenzoxazole-6-boronic Acid Pinacol Ester (CAS 1260091-04-0)
- 2,4-Difluoro-6-(trifluoromethoxy)toluene (CAS 1803731-96-5)
- Ethyl 2-(3-amino-6-methoxypyridin-2-yl)acetate (CAS 1823389-05-4)
- Ethyl 4-Hydroxy-2,3-dihydrobenzofuran-6-carboxylate (CAS 152188-38-0)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com