(5-Nitro-1H-imidazol-4-yl)methanol CAS 81246-35-7
| CAS No. | 81246-35-7 |
| Molecular Formula | C4H5N3O3 |
| Molecular Weight | 143.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(5-Nitro-1H-imidazol-4-yl)methanol (CAS 81246-35-7) is a high-purity analytical reference standard with the molecular formula C4H5N3O3 and a molecular weight of 143.10 g/mol.
Structurally, (5-Nitro-1H-imidazol-4-yl)methanol (C4H5N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 143.10 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C4H5N3O3 |
| Molecular Weight | 143.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 3 |
Related Nitro Standards
- (3-Nitro-1H-pyrazol-5-yl)methanol (CAS 1000895-25-9)
- (4-Nitro-1h-pyrazol-1-yl)methanol (CAS 1001518-99-5)
- 1-Methyl-4-nitro-1H-pyrazol-3-ol (CAS 1458593-78-6)
- (4-Nitro-1H-pyrazol-3-yl)methanol (CAS 1479085-67-0)
- (2-Nitro-1H-imidazol-5-yl)methanol (CAS 82594-81-8)
- 1-Methyl-5-nitro-1,3-dihydro-2H-imidazol-2-one (CAS 63062-13-5)
- 2-Methyl-4-nitro-1H-imidazol-5-ol (CAS 782387-82-0)
- 2-Nitro-1H-imidazole-4-carbaldehyde (CAS 89176-71-6)
Recommended Standards
- (R)-2-Amino-2-(1H-1,2,3,4-tetrazol-5-yl)acetic acid (CAS 847480-01-7)
- 2-(4-Amino-1,2,5-oxadiazol-3-yl)acetic acid (CAS 186044-13-3)
- 1-Hydroxy-2,5-dioxopyrrolidine-3-carbaldehyde (CAS 39508-63-9)
- 2-(5-Hydroxyisoxazol-3-yl)acetic acid (CAS 178168-21-3)
- 1-(3-Bromopropoxy)-4-phenylbenzene (CAS 113795-28-1)
- 2-(1-Cyclohexyl-piperidin-3-yl)-ethylamine dihydrochloride (CAS 1361113-14-5)
- 4-Chloro-1-methyl-1H-indole (CAS 77801-91-3)
- 3-(4-Sulfamoylphenoxy)propanoic acid (CAS 17071-01-1)
- 4-Bromo-1H-benzoimidazole (CAS 83741-35-9)
- (S)-2-Amino-3-(naphthalen-1-yl)propanoic acid hydrochloride (CAS 122745-10-2)
- N-(4-(5-Cinnamylisoxazol-3-yl)phenyl)benzamide (CAS 666855-92-1)
- 2-(5-Amino-1H-[1,2,4]triazol-3-yl)-1-phenyl-ethanone (CAS 95095-69-5)
- 2-Bromo-4-(bromomethyl)-1-methoxybenzene (CAS 89978-72-3)
- Neuropeptide VF (124-131) (human) (CAS 311309-27-0)
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