2-(Ethoxymethylene)malononitrile CAS 672-81-1
| 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
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(Ethoxymethylene)malononitrile.
CATO supplies 2-(Ethoxymethylene)malononitrile (CAS 672-81-1), a certified reference material (molecular formula C5H4N2O, MW 108.10 g/mol) for analytical method development and quality control.
2-(Ethoxymethylene)malononitrile (C5H4N2O) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(Ethoxymethylene)malononitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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)
- 2-Oxazoleacetonitrile (CAS 809533-78-6)
- N-Acetyl-(+)-Pseudoephedrine (CAS 84472-25-3)
- tert-Butyl (2-(5-methyl-2-oxooxazolidin-5-yl)ethyl)carbamate (CAS 2354013-80-0)
- Methyl 1-tosyl-1H-pyrrole-2-carboxylate (CAS 17639-63-3)
- 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)
- Methyl 3-(allyloxy)-7-methylbenzofuran-2-carboxylate (CAS 1707391-72-7)
- (4-Chloropentyl)benzene (CAS 27059-90-1)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com