1,2-Bis(o-carboxybenzoyl)hydrazine 1-[2-(2-Carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid 4404-90-4 Mono[2-(2-carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid CAS 4404-90-4
| CAS No. | 4404-90-4 |
| Molecular Formula | C16H12N2O6 |
| Molecular Weight | 328.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,2-Bis(o-carboxybenzoyl)hydrazine 1-[2-(2-Carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid 4404-90-4 Mono[2-(2-carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid (CAS 4404-90-4) is a high-purity analytical reference standard with the molecular formula C16H12N2O6 and a molecular weight of 328.28 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 1,2-Bis(o-carboxybenzoyl)hydrazine 1-[2-(2-Carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid 4404-90-4 Mono[2-(2-carboxybenzoyl)hydrazide]-1,2-benzenedicarboxylic Acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 328.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C16H12N2O6 |
| Molecular Weight | 328.28 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Tesofensine (CAS 402856-42-2)
- Azacitidine Impurity 46 (CAS CATO-C4X-138846)
- N1,N2-Bis(benzo[d][1,3]dioxol-5-yl)oxalamide (CAS 303790-92-3)
- Azacitidine Impurity 7 (CAS 1415316-72-1)
- (S)-2-((S)-2-amino-3-methylbutanamido)-N-(4-(hydroxymethyl)phenyl)-5-ureidopentanamide (CAS CATO-C3D-262931)
- 3-(2-Methoxy-2-oxoethoxy)benzoic acid (CAS 113496-13-2)
- 4-Chloro-6-methyl-7-phenyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 35808-71-0)
- 1-(2-Methoxybenzyl)-3-methyl-1h-pyrazole-5-carboxylic acid (CAS 864522-94-1)
- 2-(2-((2-Chlorophenoxy)methyl)morpholino)acetamide (CAS 1706446-34-5)
- N-(4-(N-(3-(benzyloxy)pyridin-2-yl)sulfamoyl)phenyl)acetamide (CAS 1024400-41-6)
- 3-Bromo-N-(2-fluorophenyl)-2-methylpyrazolo[1,5-c]pyrimidine-5-carboxamide (CAS 1170190-27-8)
- 4-Amino-3-cyano-1,2,5-oxadiazole 2-oxide (CAS 206363-17-9)
- 3-Cyclopropoxy-2-formylisonicotinonitrile (CAS 1243446-32-3)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com