3',6'-Dihydroxy-6-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one CAS 27402-68-2
| CAS No. | 27402-68-2 |
| Molecular Formula | C20H11NO7 |
| Molecular Weight | 377.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3',6'-Dihydroxy-6-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 27402-68-2), a certified reference material (molecular formula C20H11NO7, MW 377.30 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H11NO7, 3',6'-Dihydroxy-6-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 377.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 3',6'-Dihydroxy-6-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1964 |
| Nitrogen Atoms | 1 |
Related Dihydroxy Standards
- 3',6'-Dihydroxy-4-nitro-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 3318-08-9)
- N-(15,16-Dihydroxy-4,7,10,13-tetraoxahexadecyl)-2,2,2-trifluoroacetamide (CAS 869308-40-7)
- 1,2-Dihydroxy-3-nitro-4-(phenylamino)anthracene-9,10-dione (CAS 91274-64-5)
- 3,3''-Dihydroxy-2',5'-dimethyl-[1,1':4',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1382735-24-1)
- 4,4''-Dihydroxy-2',5'-dimethyl-[1,1':4',1''-terphenyl]-3,3''-dicarboxylic acid (CAS 2411327-86-9)
- N-(1,3-dihydroxy-2-(6-octyl-1,2,3,4-tetrahydronaphthalen-2-yl)propan-2-yl)acetamide (CAS 945632-83-7)
- 1’,4-Dihydroxy Triazolam (1.0mg/ml in Acetonitrile) (CAS 65686-12-6)
- 5,7-Dihydroxy-3-(4-hydroxy-3,5-dimethoxybenzyl)-6,8-dimethylchroman-4-one (CAS 212201-12-2)
Recommended Standards
- 5(6)-Nitrofluorescein (CAS 78512-32-0)
- 2-Bromo-N-{4-[(dipropylamino)sulfonyl]-phenyl}acetamide (CAS 22795-42-2)
- 6-(4-Bromophenyl)-5-(piperazin-1-ylmethyl)imidazo[2,1-b]thiazole (CAS 824413-87-8)
- 2-(4-((4-Bromo-2,6-dimethylphenyl)sulfonyl)piperazin-1-yl)ethanol (CAS 1704096-09-2)
- 2-Amino-5-methylnicotinonitrile (CAS 38076-78-7)
- 2-(3-Aminopropyl)isoindoline-1,3-dione Hydrochloride (CAS 121821-01-0)
- 4-BROMO-3-(1,3-DIOXOLAN-2-YL)BENZALDEHYDE (CAS 254744-53-1)
- 6-Chloro-5-methylhex-1-ene (CAS 1342612-45-6)
- 2-(4-Chloro-3-iodophenyl)acetonitrile (CAS 104317-97-7)
- Methyl N-(4-methoxyphenyl)-N-[(4-methylphenyl)sulfonyl]glycinate (CAS 331725-41-8)
- 8-Bromo-4-chloro-5-methoxyquinoline (CAS 1388025-15-7)
- N1-isopropyl-N1,N2-dimethylcyclohexane-1,2-diamine (CAS 1250752-14-7)
- 2-(4-Benzylpiperazin-1-yl)benzaldehyde dihydrochloride (CAS 1170029-77-2)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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