1,3-Diethyl 2-[2-(2-nitrophenyl)hydrazin-1-ylidene]propanedioate CAS 13631-92-0
| CAS No. | 13631-92-0 |
| Molecular Formula | C13H15N3O6 |
| Molecular Weight | 309.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,3-Diethyl 2-[2-(2-nitrophenyl)hydrazin-1-ylidene]propanedioate (CAS 13631-92-0), molecular formula C13H15N3O6 and molecular weight 309.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 1,3-Diethyl 2-[2-(2-nitrophenyl)hydrazin-1-ylidene]propanedioate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H15N3O6 |
| Molecular Weight | 309.27 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |
Related Diethyl Standards
- Diethyl 2-(2-nitrobenzoyl)malonate (CAS 106718-56-3)
- 1,3-Diethyl 2-[2-(3-nitrophenyl)hydrazin-1-ylidene]propanedioate (CAS 13631-94-2)
- diethyl 2-(((benzyloxy)carbonyl)amino)malonate (CAS 3005-66-1)
- diethyl 2-(2-nitro-1-phenylethyl)malonate (CAS 22975-21-9)
- Diethyl 2-ethyl-2-(4-nitrophenyl)malonate (CAS 83397-44-8)
- Diethyl 2,2-tricyclo[3.3.1.1~3,7~]decane-1,3-diyldiacetate (CAS 81657-07-0)
- 1,5-Diethyl-4-(1-(phenylsulfonyl)ethyl)-1,3-dihydro-2H-imidazol-2-one (CAS 439095-89-3)
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Recommended Standards
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- 2-Hydroxy-1-methoxy-4-oxo-4,5-dihydrodibenzo[cd,f]indole-3-carboxylic acid (CAS 106283-33-4)
- N-Acetyl-β-neuraminic AcidDISCONTINUED, duplicate of A187000 (CAS 19342-33-7)
- 1-(4-bromophenyl)butan-2-one (CAS 200064-98-8)
- 3-Bromo-5-(bromomethyl)-4-(difluoromethyl)pyridin-2-amine (CAS 1804723-06-5)
- 2-[4-(4-Piperidinyl)-1-piperazinyl]-1-ethanoldihydrochloride (CAS 1220035-51-7)
- 3-(5-Methyl-1H-imidazol-2-yl)propan-1-amine dihydrochloride (CAS 92741-94-1)
- 3,6-dichloro-N,N-dimethyl-pyridazin-4-amine (CAS 17258-35-4)
- 2-Chloroprop-2-ene-1-sulfonamide (CAS 1432682-13-7)
- 1-Cyclohexylpentane-1,3-dione (CAS 25790-34-5)
- methyl 6-chloro-5-nitro-pyridine-2-carboxylate (CAS 1803583-09-6)
- tert-Butyl N-[cis-3-fluoropiperidin-4-yl]carbamate (CAS 1268521-83-0)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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