2-Chloro-5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate CAS 87712-27-4
| CAS No. | 87712-27-4 |
| Molecular Formula | C18H11ClO7 |
| Molecular Weight | 374.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate (CAS 87712-27-4), molecular formula C18H11ClO7 and molecular weight 374.73 g/mol, is a CATO reference standard with documented purity and traceability.
2-Chloro-5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate (C18H11ClO7) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 2-Chloro-5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate 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 | C18H11ClO7 |
| Molecular Weight | 374.73 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 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-8-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate (CAS 87712-28-5)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(3,5-dimethoxyphenyl)acetamide (CAS 477890-09-8)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(3,4-dimethoxyphenyl)acetamide (CAS 338407-50-4)
- 2-chloro-N-(2,3-dimethoxybenzyl)-4-(trifluoromethyl)nicotinamide (CAS 680213-87-0)
- 7-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-2-phenylpyrazolo[1,5-a]pyrimidine (CAS 1092345-56-6)
- 3-Chloro-2-{3-phenylpyrazolo[1,5-a]pyrimidin-7-yl}-5-(trifluoromethyl)pyridine (CAS 1092345-99-7)
- (S)-3-Chloro-7-(2-(hydroxymethyl)morpholino)-2-methyl-5-(trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-6-carbonitrile (CAS 2227425-05-8)
- 1-(3-Chloro-4-fluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazole-5-carboxylic acid (CAS 618383-07-6)
Recommended Standards
- [(2R,3S,4R,5R)-5-(6-chloropurin-9-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methyl dihydrogen phosphate (CAS 5843-59-4)
- Econazole impurity 25 (CAS CATO-C4X-132725)
- 4-[(4-Chlorophenyl)methyl]-2-(2,6-difluorophenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (CAS 672951-30-3)
- 1,3-Bis(2-(bicyclo[2.2.1]hept-5-en-2-yl)ethyl)-1,1,3,3-tetramethyldisiloxane (CAS 198570-39-7)
- (+)-Dihydrocalanolide A (CAS 183904-53-2)
- Ethyl 2-(2-(4-(2-hydroxyethyl)piperazin-1-yl)acetamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 446280-91-7)
- 2-Chloro-4-fluoro-5-methylbenzene-1-sulfonyl chloride (CAS 1208076-71-4)
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- 5-(4-Fluoro-phenyl)-2-methyl-furan-3-carbonyl chloride (CAS 1506369-89-6)
- 6-Bromo-1-methyl-2(1H)-pyridone (CAS 873383-11-0)
- (2E)-3-[4-(3-Chlorobenzoyl)-1-methyl-1H-pyrrol-2-yl]-2-[5-(dimethylamino)-1,3,4-oxadiazol-2-yl]prop-2-enenitrile (CAS 338978-23-7)
- Tert-butyl 3-((4-(trifluoromethyl)phenyl)amino)piperidine-1-carboxylate (CAS 816468-50-5)
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