3,4-Dimethoxyphthalic acid CAS 518-90-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 518-90-1 |
| Molecular Formula | C10H12O2 |
| Molecular Weight | 164.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
3,4-Dimethoxyphthalic acid (CAS 518-90-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H12O2. Molecular weight: 164.20 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H12O2 |
| Molecular Weight | 164.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- 3,4-dihydro-2H-1-benzopyran-4-ylmethanol (CAS 33313-82-5)
- 3-(2,3-Dihydrobenzo[b]thiophen-3-yl)propanoic acid (CAS 188610-75-5)
- Naphthalene-2,3-dicarboxaldehyde (CAS 70848-82-7)
- 3-[(2H-1,3-Benzodioxol-5-yl)methyl]-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 451468-89-6)
- 1-ethynylcubane (CAS 163332-93-2)
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- (1R,4S)-1,2-Dimethyl-1,2,3,4-tetrahydroisoquinoline-4,7,8-triol (CAS 774139-35-4)
- (Thr(PO3H2)231)-Tau Peptide (225-237) trifluoroacetate salt (CAS 1670270-09-3)
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