Benzo[d][1,3]dioxole-5,6-diol CAS 21505-20-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21505-20-4 |
| Molecular Formula | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzo[d][1,3]dioxole-5,6-diol (CAS 21505-20-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H6O4. Molecular weight: 154.12 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Benzo Standards
- Benzo[d][1,3]oxathiol-5-ol (CAS 56539-25-4)
- Benzo[d][1,3]dithiole (CAS 274-30-6)
- Benzo[c][1,2,5]thiadiazol-5-ol (CAS 768-10-5)
- Benzo[d][1,2,3]thiadiazol-5-ol (CAS 7686-40-0)
- Benzo[d][1,2,3]thiadiazol-6-ol (CAS 7686-32-0)
- Benzo[d][1,3]dioxole-2-thione (CAS 2231-05-2)
- Benzo[d][1,3]oxathiol-2-one (CAS 7735-53-7)
- Benzo[d][1,3]dioxol-5-ylhydrazine (CAS 62646-09-7)
Recommended Standards
- 6-Methyl-5-oxo-4,5-dihydropyrazine-2-carboxylic acid (CAS 77168-83-3)
- Cerium nitride (99.9%-Ce) (CAS 25764-08-3)
- 6-Methyl-5-nitropyridin-3-ol (CAS 36625-63-5)
- p-Toluenesulfonylmethyl Isocyanide (CAS 36635-61-7)
- 6-Chloro-2,3-dihydro-1H-indene-1-carboxamide (CAS 783335-49-9)
- 4-Methyl-6-(pyrrolidin-1-yl)nicotinic acid (CAS 1355226-96-8)
- tert-butyl N-tert-butyl-N-(2-oxoethyl)carbamate (CAS 156591-79-6)
- 5-Cyclopropoxy-N,N-dimethyl-3-(methylamino)picolinamide (CAS 1243478-88-7)
- 3-((4-Methyl-4H-1,2,4-triazol-3-yl)thio)propanoic acid (CAS 723742-57-2)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com