N-(5-chloro-2-hydroxy-4-nitrophenyl)-N'-phenylurea CAS 117745-34-3
| CAS No. | 117745-34-3 |
| Molecular Formula | C13H10ClN3O4 |
| Molecular Weight | 307.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-(5-chloro-2-hydroxy-4-nitrophenyl)-N'-phenylurea (CAS 117745-34-3), a certified reference material (molecular formula C13H10ClN3O4, MW 307.69 g/mol) for analytical method development and quality control.
Structurally, N-(5-chloro-2-hydroxy-4-nitrophenyl)-N'-phenylurea (C13H10ClN3O4) 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 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 307.69 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).
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 | C13H10ClN3O4 |
| Molecular Weight | 307.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
- 5-Chloro-2-methoxy-3-nitrophenyl benzoate (CAS 1221792-84-2)
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- 5-Chloro-3-((5-methoxy-4-oxo-4H-pyran-2-yl)methyl)benzo[d]oxazol-2(3H)-one (CAS 1432086-02-6)
- 2-(5-Chloro-2-oxobenzo[d]oxazol-3(2H)-yl)-N-(5-methylisoxazol-3-yl)acetamide (CAS 902254-96-0)
- 3-[(2-Chloro-4-nitrophenoxy)methyl]benzoic acid (CAS 30880-72-9)
- 4-((2-Chloro-4-nitrophenoxy)methyl)benzoic acid (CAS 30880-70-7)
- 4-((4-Chloro-2-nitrophenoxy)methyl)benzoic acid (CAS 438219-78-4)
- Methyl 2-(4-chloro-2-nitrophenoxy)benzoate (CAS 858670-83-4)
Recommended Standards
- N-(4-Chlorobenzyl)-2,4-dinitroaniline (CAS 10268-90-3)
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- 7-(Difluoromethyl)-5-phenylpyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (CAS 861412-81-9)
- 6-Chloro-1-(3,5-difluorophenyl)-1H-indole-3-carboxylic acid (CAS 921195-18-8)
- 4-(Chloromethyl)-2-methylnonane (CAS 1485488-63-8)
- 3-(4-Chloro-2-cyanophenoxy)benzoic acid (CAS 1315368-61-6)
- 2-Amino-4,6-dimethoxybenzoic acid hydrochloride (CAS 557771-10-5)
- 5-[2-(Methylsulfanyl)phenyl]-3-phenyl-1,2-oxazole (CAS 153201-36-6)
- 6,7-Dihydro-5H-pyrrolo[2,3-c]pyridazine (CAS 1245646-68-7)
- 3-(1-Methyl-1h-pyrazol-4-yl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 957503-54-7)
- (3-(Benzyloxy)benzyl)hydrazine hydrochloride (CAS 40051-69-2)
- 1-(2-chloroethyl)-4-phenylpiperazine dihydrochloride 43219-09-6 (CAS 43219-09-6)
- Sodium 1-methyl-5-(trifluoromethyl)-1H-pyrazole-4-sulfinate (CAS 2137679-15-1)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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