4-(4,5-Dichloro-1H-imidazol-1-yl)-N'-hydroxy-3-nitrobenzimidamide CAS 649665-53-2
| CAS No. | 649665-53-2 |
| Molecular Formula | C10H7Cl2N5O3 |
| Molecular Weight | 316.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(4,5-Dichloro-1H-imidazol-1-yl)-N'-hydroxy-3-nitrobenzimidamide (CAS 649665-53-2), molecular formula C10H7Cl2N5O3 and molecular weight 316.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(4,5-Dichloro-1H-imidazol-1-yl)-N'-hydroxy-3-nitrobenzimidamide (C10H7Cl2N5O3) 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 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 316.10 g/mol, it falls into the moderately-high-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).
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 | C10H7Cl2N5O3 |
| Molecular Weight | 316.10 g/mol |
| Appearance | Pale yellow to 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 sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Dichloro Standards
- 1,5-Dichloro-2-((3-fluorobenzyl)oxy)-4-nitrobenzene (CAS 1708126-05-9)
- [2-[(2,5-Dichloro-4-pyrimidinyl)amino]phenyl]dimethylphosphine Oxide (CAS 1197953-49-3)
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- 2,4-Dichloro-6-(dibenzo[b,d]furan-2-yl)-1,3,5-triazine (CAS 1699739-77-9)
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- 3,4-Dichloro-N-(naphthalen-1-yl)benzamide (CAS 28393-96-6)
Recommended Standards
- 3-(2,4-Dimethylphenyl)-4-iodo-1,2,3-oxadiazol-3-ium-5-olate (CAS 358334-40-4)
- 4-Iodo-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester (CAS 55899-31-5)
- 2-Bromo-7-(3,5-difluorophenoxy)-6,7-dihydro-5H-pyrrolo[1,2-b][1,2,4]triazole (CAS 2443488-02-4)
- 5-(4-iodophenyl)-5-methylimidazolidine-2,4-dione (CAS 201606-08-8)
- 3-(2-Chloroacetamido)propanoic acid (CAS 4596-38-7)
- 2-Propenoic acid, methyl ester, polymer with diethenylbenzene and 1,1'-[oxybis(2,1-ethanediyloxy)]bis[ethene] (CAS 58334-70-6)
- (R)-1-(2,4-Dichlorophenyl)ethan-1-amine (CAS 133773-29-2)
- (Z)-3-Chloroacryloyl chloride (CAS 3721-35-5)
- 1-(4-Sulfanylphenyl)ethan-1-one (CAS 3814-20-8)
- 4-({[1-carboxy-3-(methylthio)propyl]amino}sulfonyl)-2,1,3-benzothiadiazol (CAS 1396962-41-6)
- [1,3-Bis(diphenylphosphino)propane]palladium(II) Dichloride 59831-02-6 (1,3-BIS(DIPHENYLPHOSPHINO)PROPANE)PALLADIUM(II) CHLORIDE;DICHLORO[1,3-BIS(DIPHENYLPHOSPHINO)PROPANE]PALLADIUM(II);DICHLORO[BIS(1,3-DIPHENYLPHOSPHINO)PROPANE]PALLADIUM(II);PD(DPPP)CL2;PDCL2(DIPPP);[1,3-BIS(DIPHENYLPHOSPHINO)PROPANE]DICHLOROPALLADIUM(II);[1,3-BIS(DIPHENYLPHOSPHINO)PROPANE]PALLADIUM(II) DICHLORIDE GC10010 (CAS 59831-02-6)
- Tadalafil Impurity 17 (CAS 629652-42-2)
- 1-(4-Methoxyphenyl)-1h-imidazol-2-amine (CAS 21722-06-5)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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