4,4′-oxybisphthalic anhydride CAS 1823-59-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1823-59-2 |
| Molecular Formula | C16H18O7 |
| Molecular Weight | 322.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4,4′-oxybisphthalic anhydride (CAS 1823-59-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C16H18O7. Molecular weight: 322.31 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C16H18O7 |
| Molecular Weight | 322.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- 2-(5-(2-Ethylhexyl)thiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1390584-88-9)
- Bis(tripropyltin) oxide (CAS 1067-29-4)
- 8-Methyl-4,5-dihydro-[1,2,5]oxadiazolo[3,4-f]cinnoline (CAS 216218-93-8)
- 2-(3-Fluoro-4-methylphenyl)acetonitrile (CAS 261951-73-9)
- Doxepin Impurity 2 (CAS 131523-93-8)
- Sacubitril impurity 9 (CAS CATO-C4X-28099)
- 4-(2-Methyl-5-phenyl-1H-pyrrol-1-yl)benzonitrile (CAS 597545-02-3)
- 107444-51-9 0JS9125PIZ Glucagon-like peptide 1 (7-36) Glucagon-related peptide 1 (Rana catesbeiana), 3-L-glutamic acid-10-L-valine-16-glycine-17-L-glutamine-23-L-isoleucine-24-L-alanine-27-L-valine-30-L-argininamide-31-de-L-proline-32-de-L-lysine- Glp-I (7-36) Proglucagon (78-107) Human glucagon-like peptide-1-(7-36) amide Human GLP-1-(7-36)-amide Glucagon-like peptide-I(7-36) amide Rat GLP-I(7-36)amide Insulinotropin (human) MKC 253 UNII-0JS9125PIZ (CAS 107444-51-9)
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