3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine hydrochloride CAS 1187631-03-3
| CAS No. | 1187631-03-3 |
| Molecular Formula | C11H13N3O |
| Molecular Weight | N/A |
| 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.
3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine hydrochloride (CAS 1187631-03-3) is a high-purity analytical reference standard with the molecular formula C11H13N3OHCl and a molecular weight of 239.70 g/mol.
Structurally, 3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine hydrochloride (C11H13N3OHCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 239.70 g/mol, it falls into the medium-molecular-weight range. 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 | C11H13N3O HCl |
| Molecular Weight | 239.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethoxyphenyl Standards
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- 2-((4-Ethoxyphenyl)amino)acetohydrazide (CAS 100133-39-9)
- 1-(4-Ethoxyphenyl)-5-thioxopyrrolidin-2-one (CAS 100192-41-4)
- N-(4-Ethoxyphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine (CAS 100253-53-0)
- Ethyl 1-(3-ethoxyphenyl)-3-(trifluoromethyl)-1H-pyrazole-4-carboxylate (CAS 1003579-02-9)
- 13-(2-Ethoxyphenyl)-11,12-dimethyl-4,6,10-trioxatricyclo[7.4.0.0^{3,7}]trideca-1(9),2,7-trien-11-ol (CAS 1005084-97-8)
- 1-(8-(2-ethoxyphenyl)-6,7-dimethyl-7,8-dihydro-6H-[1,3]dioxolo[4,5-g]chromen-6-yl)pyrrolidine (CAS 1005116-71-1)
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Recommended Standards
- 2-Chloro-n-[1-(3,4-dipropoxyphenyl)ethyl]acetamide (CAS 851879-13-5)
- 5-[(3-fluorophenyl)methyl]-1,3-oxazolidin-2-one (CAS 62826-18-0)
- Acerogenin G (CAS 130233-83-9)
- 1-(2-Hydroxyethyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 32672-82-5)
- 2-Amino-3-{[(3-chlorophenyl)methylidene]amino}but-2-enedinitrile (CAS 74900-58-6)
- N-(2-methoxyethyl)-2-nitro-4-(trifluoromethyl)aniline (CAS 161605-63-6)
- Methyl 2-(chloromethyl)-5-methoxy-1,3-benzoxazole-7-carboxylate (CAS 1221792-89-7)
- Tert-butyl (1-benzyl-2,5-dimethylpiperidin-4-yl)carbamate (CAS 1315365-30-0)
- 2-(2-Methyl-1-piperidinyl)isonicotinic acid (CAS 1019127-10-6)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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