2-(4,5-Dichloro-1H-imidazol-1-yl)acetohydrazide CAS 175137-68-5
| CAS No. | 175137-68-5 |
| Molecular Formula | C5H6Cl2N4O |
| Molecular Weight | 209.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(4,5-Dichloro-1H-imidazol-1-yl)acetohydrazide (C5H6Cl2N4O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 209.03 g/mol, it falls into the medium-molecular-weight range. 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).
2-(4,5-Dichloro-1H-imidazol-1-yl)acetohydrazide (CAS 175137-68-5) is a high-purity analytical reference standard with the molecular formula C5H6Cl2N4O and a molecular weight of 209.03 g/mol.
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.
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 | C5H6Cl2N4O |
| Molecular Weight | 209.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichloro Standards
- 4,5-Dichloro-6-ethoxypyridazin-3(2H)-one (CAS 117613-99-7)
- Methyl 2-(4,5-dichloro-1H-imidazol-1-yl)acetate (CAS 1189749-39-0)
- 2-(4,5-Dichloro-3-methyl-1H-pyrazol-1-yl)acetic acid (CAS 1228551-78-7)
- 5,6-Dichloro-3-ethylpyrimidine-2,4(1H,3H)-dione (CAS 1708435-97-5)
- 4,5-Dichloro-1-ethyl-1H-pyrazole-3-carboxylic acid (CAS 956264-17-8)
- 4,5-Dichloro-2-(2-hydroxyethyl)pyridazin-3(2H)-one (CAS 69696-56-6)
- 5,6-Dichloro-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 21442-88-6)
- Ethyl 4,5-dichloro-1h-imidazole-2-carboxylate (CAS 64736-58-9)
Recommended Standards
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- [4-Fluoro-3-(pyrrolidin-1-yl)phenyl]boronic acid (CAS 1704073-15-3)
- (4-Propyl-4H-1,2,4-triazol-3-yl)methanamine dihydrochloride (CAS 1255717-12-4)
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- Tetrahydrocannabivarin (CAS 31262-37-0)
- N-methylsulfonyl-N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridyl]methanesulfonamide (CAS 2179098-20-3)
- 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleimide (CAS 220191-36-6)
- rac-4-[(3R,4R)-4-methoxypyrrolidin-3-yl]-1H-1,2,3-triazole dihydrochloride (CAS 1989637-92-4)
- N-Cyclopentyl-2-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-yl)acetamide (CAS 371131-02-1)
- Z-Asp(OBzl)-OH (CAS 3479-47-8)
- 3-(2-Chlorobenzoyl)-4-(4-chlorophenyl)-1-methylpyrrolidine (CAS 343374-80-1)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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