2-(3,4-Diaminocyclopenta-2,4-dien-1-ylidene)malononitrile CAS 503550-50-3
| CAS No. | 503550-50-3 |
| Molecular Formula | C8H6N4 |
| Molecular Weight | 158.16 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-(3,4-Diaminocyclopenta-2,4-dien-1-ylidene)malononitrile.
2-(3,4-Diaminocyclopenta-2,4-dien-1-ylidene)malononitrile (CAS 503550-50-3), molecular formula C8H6N4 and molecular weight 158.16 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(3,4-Diaminocyclopenta-2,4-dien-1-ylidene)malononitrile (C8H6N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 158.16 g/mol, it falls into the medium-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-(3,4-Diaminocyclopenta-2,4-dien-1-ylidene)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 | C8H6N4 |
| Molecular Weight | 158.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 2-(1-(Furan-2-yl)ethylidene)malononitrile (CAS 62737-71-7)
- 2-(3-Amino-2-iminoimidazolidin-1-yl)acetic acid (CAS 773041-30-8)
- 2-((4,5-Diamino-1H-pyrazol-1-yl)oxy)ethanol (CAS 927417-22-9)
- 2-(3-oxo-2,3-dihydropyridazin-4-yl)acetic acid (CAS 62089-16-1)
- 4-n-Heptyloxyphenyl 4-n-hexyloxybenzoate (CAS 38454-39-6)
- 4-(1H-Imidazol-1-yl)butan-1-ol (CAS 72338-60-4)
- 2-Hydroxy-5-isopropylbenzoic Acid (CAS 31589-71-6)
- 4-(Dimethylamino)-N-phenylbenzamide (CAS 3765-62-6)
- 1H-pyrazolo[3,4-b]pyridin-5-amine hydrochloride (CAS 1431970-26-1)
- 3-Fluoro-4-(2-methoxyphenoxy)benzonitrile (CAS 1153105-84-0)
- (4-Heptylphenyl)(4-methylpyridin-2-yl)methanone (CAS 1187165-20-3)
- 2,2,7-Trimethyl-2,3-dihydrobenzofuran-5-carbaldehyde (CAS 363185-40-4)
- methyl (2S,4S)-2-methylpiperidine-4-carboxylate;hydrochloride (CAS 2387560-52-1)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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