6,6'-Dihydroxy-5,5'-dimethoxy-2,2'-diphenic acid dimethyl ester CAS 1173188-30-1
| CAS No. | 1173188-30-1 |
| Molecular Formula | C18H18O8 |
| Molecular Weight | 362.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6,6'-Dihydroxy-5,5'-dimethoxy-2,2'-diphenic acid dimethyl ester is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6,6'-Dihydroxy-5,5'-dimethoxy-2,2'-diphenic acid dimethyl ester (CAS 1173188-30-1), molecular formula C18H18O8 and molecular weight 362.33 g/mol, is a CATO reference standard with documented purity and traceability.
6,6'-Dihydroxy-5,5'-dimethoxy-2,2'-diphenic acid dimethyl ester (C18H18O8) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 6,6'-Dihydroxy-5,5'-dimethoxy-2,2'-diphenic acid dimethyl ester 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 | C18H18O8 |
| Molecular Weight | 362.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Dihydroxy Standards
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- 1,4-Dihydroxy-2-(2-methoxybenzyl)anthracene-9,10-dione (CAS 63776-13-6)
- 2-(2,4-Dihydroxy-5-methoxyphenyl)-5-hydroxy-6,7-dimethoxy-4H-chromen-4-one (CAS 83162-82-7)
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- 3,3''-Dihydroxy-2'-methyl-[1,1':4',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1613451-81-2)
Recommended Standards
- Pyrasulfotole (CAS 365400-11-9)
- NPEC-caged-noradrenalin (CAS 1257323-83-3)
- Diethyl 3-amino-6-(trifluoromethyl)thieno[2,3-b]pyridine-2,5-dicarboxylate (CAS 175277-75-5)
- [1,1':4',1"-Terphenyl]-2',4,4"-tricarboxylic acid (CAS 127728-51-2)
- N,N-Diethyl-2-(2-(3-(2-methoxyphenyl)ureido)thiazol-4-yl)acetamide (CAS 921469-86-5)
- 5-Bromo-1-(2,2-difluoroethyl)pyridin-2(1H)-one (CAS 1516819-77-4)
- 4-(4-Chloro-3-nitrobenzyl)pyridine (CAS 540512-04-7)
- 2-phenyl-4H,5H,6H,7H-furo[2,3-c]pyridine hydrochloride (CAS 104278-45-7)
- 4,4'-Oxybis(N-methylbenzenesulfonamide) (CAS 1096-17-9)
- 4-Fluoro-3-nitro-1H-pyrrolo[2,3-b]pyridine (CAS 1172067-55-8)
- 3-(tert-Butoxy)-4-cyclopropoxy-5-(trifluoromethyl)pyridine (CAS 1243346-87-3)
- N-Chloroacetyl-DL-norleucine (CAS 67206-26-2)
- 6-Bromo-2-(4-methoxyphenyl)imidazo[1,2-a]pyrimidine (CAS 860789-82-8)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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