Hydralazine Impurity 3 CAS 6091-81-2
| CAS No. | 6091-81-2 |
| Molecular Formula | C9H8N2O |
| Molecular Weight | 160.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Hydralazine Impurity 3 (CAS 6091-81-2), molecular formula C9H8N2O and molecular weight 160.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Hydralazine Impurity 3 (C9H8N2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Hydralazine Impurity 3 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 | C9H8N2O |
| Molecular Weight | 160.17 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Hydralazine Standards
- Hydralazine Impurity 1 (CAS 234-80-0)
- Hydralazine Impurity 2 (CAS 600707-30-0)
- Hydralazine N-oxide (CAS 18636-89-0)
- Hydralazine Impurity 6 (CAS 59283-60-2)
- Hydralazine Pyruvic Acid Hydrazone (Mixture of cis and Trans): (CAS 67536-13-4)
- Hydralazine-15N4 Pyruvic Acid Hydrazone (CAS 1346606-25-4)
- Hydralazine Impurity 5 (CAS 55294-87-6)
- Hydralazine Impurity 2 (CAS 24030-07-7)
Recommended Standards
- H-N-Me-D-Gln-OH (CAS 862504-01-6)
- Hydroxy-4-methylphthalazine (CAS 5004-48-8)
- H-D-Ala-DL-Ala-OH (CAS 210687-33-5)
- Indolizine-2-carboxamide (CAS 22320-23-6)
- 2-Chloro-4-isobutyramidobenzamide (CAS 1216752-82-7)
- Dimethyl 4-cyanophthalate (CAS 51927-06-1)
- 2-((2'H-spiro[cyclopentane-1,3'-isoquinolin]-1'(4'H)-ylidene)amino)acetic acid (CAS 440087-73-0)
- 5-(3-Methoxyphenyl)-2-methyloxazole (CAS 74048-08-1)
- 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(1-(4-chlorophenyl)ethylidene)-3-methyl-1H-pyrazol-5(4H)-one (CAS 119457-23-7)
- 2-(2-Amino-4-methyl-6-oxopyrimidin-1(6H)-yl)-N-(2,4-difluorobenzyl)acetamide (CAS 1251604-92-8)
- (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(o-tolyl)butanoic acid (CAS 270062-91-4)
- 2-(Cyclohexylamino)adamantane-2-carbonitrile (CAS 1283291-01-9)
- Methyl (1S,2S)-1-amino-2-(trifluoromethyl)cyclopropane-1-carboxylate hydrochloride (CAS 1807941-07-6)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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