3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5(6)-carboxylic acid CAS 1171493-85-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1171493-85-8 |
| Molecular Formula | 2*C21H12O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5(6)-carboxylic acid (CAS 1171493-85-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: 2*C21H12O7. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | 2*C21H12O7 |
| Molecular Weight | 376.32 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Dihydroxy Standards
- Ethyl 2,2-dihydroxy-4-ethoxy-3-oxobutanoate (CAS 1000018-28-9)
- Ethyl 4,6-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-65-8)
- Ethyl 4,7-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-66-9)
- Ethyl 4,8-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-67-0)
- 1-(2,4-Dihydroxy-3,6-dimethoxyphenyl)-3-(2-methoxyphenyl)prop-2-en-1-one 100079-39-8 ST24037017 (CAS 100079-39-8)
- 2,3-Dihydroxy-3-(4-hydroxyphenyl)propanoic acid (CAS 100201-57-8)
- 1,4-Dihydroxy-5,8-bis(methylamino)anthracene-9,10-dione (CAS 100495-28-1)
- 1,4-Dihydroxy-5,8-bis(propylamino)anthracene-9,10-dione (CAS 100495-30-5)
Recommended Standards
- (3,5-Diiodo-Tyr2,Arg8)-Vasopressin (CAS 63441-67-8)
- 5-Bromo-2-isopropyl-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 1707568-51-1)
- 2-Amino-7-(((1,3-dihydroxypropan-2-yl)oxy)methyl)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile (CAS 127945-75-9)
- 667412-92-2 4-Cyano-5-[(cyanoacetyl)amino]-N,N,3-trimethylthiophene-2-carboxamide MFCD04054576 (CAS 667412-92-2)
- trans-4-(4-Bromobenzoyl)cyclohexane-1-carboxylic acid (CAS 736136-15-5)
- 2-(3-Ethoxy-4-methylphenyl)ethanol (CAS 1379239-10-7)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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