7-Bromo-1,3-dihydroxy-9h-xanthen-9-one CAS 100334-97-2
| CAS No. | 100334-97-2 |
| Molecular Formula | C13H7BrO4 |
| Molecular Weight | 307.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Bromo-1,3-dihydroxy-9h-xanthen-9-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7-Bromo-1,3-dihydroxy-9h-xanthen-9-one (CAS 100334-97-2) is a high-purity analytical reference standard with the molecular formula C13H7BrO4 and a molecular weight of 307.10 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 7-Bromo-1,3-dihydroxy-9h-xanthen-9-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 307.10 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).
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 7-Bromo-1,3-dihydroxy-9h-xanthen-9-one 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 | C13H7BrO4 |
| Molecular Weight | 307.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-3-(oxazol-4-yl)indolizine-2-carboxylic acid (CAS 1263182-10-0)
- 7-Bromo-1-methyl-4-nitro-[1,2,4]triazolo[4,3-a]quinoline (CAS 1300031-89-3)
- 5-Bromo-4-(2,2-dimethoxy)ethyl-2-hydroxy-3-nitropyridine (CAS 1427504-38-8)
- 2′-Bromo-2′-deoxyuridine (CAS 4753-02-0)
- 6-Bromo-3-(5-methyl-1,3,4-oxadiazol-2-yl)-4H-chromen-4-one (CAS 293740-63-3)
- 2-Bromo-N-(5,7-difluorobenzo[d]thiazol-2-yl)acetamide (CAS 219499-50-0)
- 7-Bromo-5,8-difluoro-2-(methylthio)quinazolin-4(3H)-one (CAS 2757097-61-1)
- 5-Bromo-2-(3,3-difluoropyrrolidin-1-yl)nitrobenzene (CAS 1644453-92-8)
Recommended Standards
- Liothyronine Impurity 2 (CAS 70-78-0)
- Ethyl 4-(2,6-Dichloro-3-fluorophenyl)-2,4-dioxobutanoate (CAS 1041553-00-7)
- Methyl 2-ethoxy-5-iodonicotinate (CAS 335078-24-5)
- Ethyl 4-amino-3-hydroxy-5-iodobenzoate (CAS 2090806-81-6)
- Tribendimidine (CAS 115103-15-6)
- (S)-Benzyl ((1-(2-aminoacetyl)pyrrolidin-2-yl)methyl)(methyl)carbamate (CAS 1354014-95-1)
- (1-(4-Chlorophenyl)propyl)hydrazine (CAS 90675-08-4)
- Methyl 7-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 140646-25-9)
- 7-Fluoroisoquinoline-1-carboxylic acid (CAS 441717-84-6)
- Ethyl 2-amino-5-fluoro-4-methylbenzoate (CAS 1344103-75-8)
- 1,4,5,8-Tetraamino-2,7-bis(benzylthio)anthracene-9,10-dione (CAS 88605-76-9)
- Hydroxy-α-sanshool (CAS 83883-10-7)
- trans-4-Hydroxy-2-nonenal-d3 (CAS 148706-06-3)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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