4-Amino-6-(4-ethoxyphenyl)pyridazin-3-ol CAS 1105192-85-5
| CAS No. | 1105192-85-5 |
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Amino-6-(4-ethoxyphenyl)pyridazin-3-ol (C12H13N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
4-Amino-6-(4-ethoxyphenyl)pyridazin-3-ol (CAS 1105192-85-5), molecular formula C12H13N3O2 and molecular weight 231.25 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H13N3O2 |
| Molecular Weight | 231.25 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.) | 1989 |
| Nitrogen Atoms | 3 |
Related Amino Standards
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Recommended Standards
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- 3-(2,6-Dimethylphenyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 1104461-65-5)
- 5-(2,3-Dimethoxyphenyl)pyrimidin-2-amine (CAS 1111101-71-3)
- Phenanthrene-1,4-dione (CAS 569-15-3)
- 2-((4-(sec-Butyl)phenyl)amino)nicotinic acid (CAS 1206107-15-4)
- (3-(1,2,4-Oxadiazol-3-yl)-5-(trifluoromethyl)phenyl)boronic acid (CAS 2096332-31-7)
- 2-(Azido-PEG2-amido)-1,3-propandiol (CAS 1398044-52-4)
- (1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl)methyl ethylcarbamate (CAS 338419-15-1)
- 1-(3-(Trifluoromethyl)phenoxy)but-3-en-2-ol (CAS 1956325-07-7)
- (S)-tert-Butyl 2-((2-aminoacetamido)methyl)pyrrolidine-1-carboxylate (CAS 1354008-96-0)
- N-(5-bromothiazolo[5,4-b]pyridin-2-yl)acetamide (CAS 1112982-76-9)
- 1-(1,1-Dimethylethyl)-4-ethyl 3-hydroxy-1,4-piperidinedicarboxylate (CAS 217488-49-8)
- Peptide 435 (CAS CATO-CPTD788435)
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