5-Amino-4-chloro-1H-benzo[d]imidazol-2(3H)-one CAS 72735-26-3
| CAS No. | 72735-26-3 |
| Molecular Formula | C7H6ClN3O |
| Molecular Weight | 183.60 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.
CATO supplies 5-Amino-4-chloro-1H-benzo[d]imidazol-2(3H)-one (CAS 72735-26-3), a certified reference material (molecular formula C7H6ClN3O, MW 183.60 g/mol) for analytical method development and quality control.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 5-Amino-4-chloro-1H-benzo[d]imidazol-2(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 183.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 5-Amino-4-chloro-1H-benzo[d]imidazol-2(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H6ClN3O |
| Molecular Weight | 183.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 4-Amino-5-chloro-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190315-45-7)
- 2-Amino-4-chloro-1-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 2227132-39-8)
- 5-Amino-6-chloro-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 60713-77-1)
- 6-Amino-4-chloro-1H-benzo[d]imidazol-2(3H)-one (CAS 59674-84-9)
- 6-Amino-4-chloro-1H-indazol-3-ol (CAS 91775-38-1)
- 8-Amino-6-chloro-3-methyl-[1,2,4]triazolo[4,3-b]pyridazine (CAS 53085-52-2)
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Recommended Standards
- 4H-Pyrazolo[5,1-c][1,4]oxazine-6-carbonitrile, 3-chloro-6,7-dihydro- (CAS 2121711-49-5)
- 4-Chloro-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-one (CAS 2227205-65-2)
- 5-Chloro-1-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one (CAS 40852-06-0)
- 4-Chloro-6-methoxy-2-methylpyrimidine-5-carbonitrile (CAS 875233-60-6)
- 1-Cyclopropyl-4-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2446483-86-7)
- 2-Deoxyguanosine-1- (CAS 478511-26-1)
- N1-(4-Fluorophenyl)-N2-(2-hydroxyethyl)oxalamide (CAS 357268-60-1)
- 2,6-Difluoro-DL-phenylalanine (CAS 32133-39-4)
- 3-(4-Aminobutyl)-1H-Indole-5-carbonitrile (CAS 143612-85-5)
- Methyl 2-Amino-4,6-difluorobenzoate (CAS 379228-57-6)
- 2-[(2,5-dioxoimidazolidin-1-yl)methyl]benzoic acid (CAS 923171-96-4)
- 1-(3-Methoxypropyl)-3,5-dimethyl-1h-pyrazol-4-amine (CAS 1183490-98-3)
- N-ethyl-2-(piperazin-1-yl)nicotinamide (CAS 902836-16-2)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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