2-(Ethoxymethylene)malononitrile CAS 672-81-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 672-81-1 |
| Molecular Formula | C5H4N2O |
| Molecular Weight | 108.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Ethoxymethylene)malononitrile (CAS 672-81-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N2O. Molecular weight: 108.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N2O |
| Molecular Weight | 108.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Ethoxymethylene Standards
- (Ethoxymethylene)malononitrile (CAS 123-06-8)
- 2-(ethoxymethylene)butanal (CAS 30989-75-4)
- 2-(Ethoxymethylene)-3-oxobutanenitrile (CAS 105224-25-7)
- (Z)-2-(Ethoxymethylene)-3-oxobutanenitrile (CAS 186341-01-5)
- (E)-2-(Ethoxymethylene)-3-oxobutanenitrile (CAS 278602-14-5)
- 2-(Ethoxymethylene)cyclopentan-1-one (CAS 343928-98-3)
- 2-(Ethoxymethylene)cyclohexan-1-one (CAS 128445-74-9)
- 3-(Ethoxymethylene)pentane-2,4-dione (CAS 33884-41-2)
Recommended Standards
- 2-(4-Isoxazolyl)acetonitrile (CAS 893640-97-6)
- 2-Methyl-1,3-oxazole-4-carbonitrile (CAS 89282-09-7)
- 2-(4h-1,2,4-Triazol-3-yl)acetonitrile (CAS 28824-81-9)
- N-Acetyl-(+)-Pseudoephedrine (CAS 84472-25-3)
- tert-Butyl (2-(5-methyl-2-oxooxazolidin-5-yl)ethyl)carbamate (CAS 2354013-80-0)
- N-Benzyl-5-(thiophen-2-yl)-1,3,4-oxadiazol-2-amine (CAS 918964-45-1)
- 3-(Ethylsulfanyl)-5-phenyl-4h-1,2,4-triazol-4-ylamine (CAS 121033-69-0)
- 6-(2-Oxotetrahydropyrimidin-1(2h)-yl)nicotinic acid (CAS 1439900-54-5)
- Methyl 3-hydroxy-1-methoxycyclobutane-1-carboxylate (CAS 2384673-56-5)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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