1,4-Diiodo-2,5-dimethoxybenzene CAS 51560-21-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51560-21-5 |
| Molecular Formula | C8H8I2O2 |
| Molecular Weight | 389.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Diiodo-2,5-dimethoxybenzene (CAS 51560-21-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H8I2O2. Molecular weight: 389.96 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H8I2O2 |
| Molecular Weight | 389.96 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | I-containing |
Related Diiodo Standards
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- (4,5-Diiodo-1,2-phenylene)dimethanol (CAS 53279-73-5)
- 1,4-Diiodo-2,3-Dimethoxybenzene (CAS 51560-25-9)
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Recommended Standards
- [4-(hydroxymethyl)-2,5-diiodophenyl]methanol (CAS 915706-87-5)
- Dichloro(2-pyridinecarboxylato)gold 88215-41-2 PicAuCl2 (CAS 88215-41-2)
- 2-(3,5-Dibromo-1H-1,2,4-triazol-1-yl)-1-(3-nitrophenyl)ethan-1-one (CAS 1240573-33-4)
- 4-Amino-6-(2,4-dichlorophenyl)-3-phenyl-3,7-dihydropyrimido[5,4-d]pyrimidine-2,8-dione (CAS 866019-00-3)
- 1H-Indazol-7-yl trifluoromethanesulfonate (CAS 945761-93-3)
- 6-Methoxy-4,7-dimethyl-1H-indole-2-carboxylic acid (CAS 383132-83-0)
- (3-Bromopropyl)triethylazanium bromide (CAS 3720-84-1)
- 6-(2-Chlorophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4-thiol (CAS 917749-32-7)
- 4-(1,2,3-Thiadiazol-5-yl)benzene-1-sulfonyl chloride (CAS 1367928-80-0)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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