3',6'-Dihydroxy-4-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one CAS 3318-08-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3318-08-9 |
| Molecular Formula | C20H11NO7 |
| Molecular Weight | 377.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3',6'-Dihydroxy-4-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 3318-08-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H11NO7. Molecular weight: 377.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H11NO7 |
| Molecular Weight | 377.30 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dihydroxy Standards
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Recommended Standards
- 2-Bromo-N-{4-[(dipropylamino)sulfonyl]-phenyl}acetamide (CAS 22795-42-2)
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- 5(6)-Nitrofluorescein (CAS 78512-32-0)
- 3-(4-Chlorophenyl)-5-(piperidin-3-yl)-1,2,4-oxadiazole (CAS 958712-85-1)
- Methyl 1-((1h-pyrazol-1-yl)methyl)-1h-pyrazole-3-carboxylate (CAS 1001499-89-3)
- 3-(Chloromethyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole hydrochloride (CAS 1820685-05-9)
- 4-(1-Ethyl-1h-pyrazol-5-yl)butan-2-ol (CAS 1339664-60-6)
- 2-Benzoyl-5-bromobenzaldehyde (CAS 1049009-49-5)
- <I>N</I>-Chlorobenzene sulfonamide sodium salt (CAS 127-52-6)
- Peptide 435 (CAS CATO-CPTD788435)
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