1,5-Dihydroxy-4,8-dinitroanthraquinone CAS 128-91-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 128-91-6 |
| Molecular Formula | C14H6N2O8 |
| Molecular Weight | 330.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,5-Dihydroxy-4,8-dinitroanthraquinone (CAS 128-91-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H6N2O8. Molecular weight: 330.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H6N2O8 |
| Molecular Weight | 330.21 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Dihydroxy Standards
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- 1-(2,4-Dihydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)ethan-1-one (CAS 26089-54-3)
- 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3-methoxy-4H-chromen-4-one (CAS 4382-17-6)
- 5,7-Dihydroxy-2-(4-hydroxyphenyl)-6,8-dimethoxy-4H-chromen-4-one (CAS 4323-80-2)
- 1-(2,4-Dihydroxy-3,6-dimethoxyphenyl)-3-(2-methoxyphenyl)prop-2-en-1-one 100079-39-8 ST24037017 (CAS 100079-39-8)
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Recommended Standards
- 1-(4-IOdophenyl)-4-isopropylpiperazine (CAS 1244855-50-2)
- 2-(4-Chlorobenzyl)-5-(4-chlorophenyl)pyrimidin-4-amine (CAS 139041-05-7)
- 1,4-Bis(pentafluorothio)benzene (CAS 1219501-58-2)
- 4-Acetyl-3-methyl-1H-pyrrole-2-carbonitrile (CAS 112381-10-9)
- 9-(8-Bromodibenzo[b,d]furan-2-yl)-9H-carbazole (CAS 1100752-07-5)
- 2-Bromo-1-ethyl-4-fluorobenzene (CAS 261711-19-7)
- 1-(2,2-Difluoroethyl)azetidin-3-amine dihydrochloride (CAS 1630907-11-7)
- Methyl 3,6-dichloro-2-(difluoromethoxy)benzoate (CAS 1804516-35-5)
- (S)-1-(2-Fluoropyridin-4-yl)ethanamine hydrochloride (CAS 1956435-62-3)
- Semaglutide Impurity 137 (x TFA Salt) (CAS CATO-C4X-2226137)
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