N-(3-chlorophenyl)formamide CAS 139-71-9
| CAS No. | 139-71-9 |
| Molecular Formula | C7H6ClNO |
| Molecular Weight | 155.58 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.
N-(3-chlorophenyl)formamide (CAS 139-71-9) is a high-purity analytical reference standard with the molecular formula C7H6ClNO and a molecular weight of 155.58 g/mol.
Structurally, N-(3-chlorophenyl)formamide (C7H6ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 155.58 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), N-(3-chlorophenyl)formamide 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 | C7H6ClNO |
| Molecular Weight | 155.58 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related N Standards
- N-(4-Chlorophenyl)formamide (CAS 2617-79-0)
- (R)-1-(2-Chlorophenyl)ethan-1-amine (CAS 127733-42-0)
- 2-(3-Chlorophenyl)ethylamine (CAS 13078-79-0)
- 2-(2-Chlorophenyl)ethanamine (CAS 13078-80-3)
- (R)-1-(3-Chlorophenyl)ethanamine (CAS 17061-53-9)
- (R)-1-(4-Chlorophenyl)ethanamine (CAS 27298-99-3)
- (S)-1-(4-Chlorophenyl)ethanamine (CAS 4187-56-8)
- 1-(3-Chlorophenyl)ethylamine (CAS 24358-43-8)
Recommended Standards
- 5-Chloro-6-methylpicolinaldehyde (CAS 137778-17-7)
- 2-Chloro-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine (CAS 1393545-06-6)
- 4-Chloro-2,3-dihydro-1H-pyrrolo[2,3-d]pyridazine (CAS 1354455-05-2)
- 3-Chloro-5-cyclopropyl-1,2,4-triazine (CAS 1393570-72-3)
- 6-chloro-3-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1211531-25-7)
- 2-(Diethylamino)-4-(pyridin-2-yl)pyrimidine-5-carboxylic acid (CAS 1708080-62-9)
- Methyl 5-(4-chlorophenyl)-2-(trifluoromethyl)-3-furoate (CAS 2197052-79-0)
- 4-[(4-Chloro-1-naphthyl)oxy]-2-methylphenylamine (CAS 946743-13-1)
- (2E,4E)-2-(2,2-Dimethylpropanoyl)-5-phenylpenta-2,4-dienenitrile (CAS 1001755-18-5)
- 1-(3-Aminopyrrolidin-1-yl)-2,2,2-trifluoroethan-1-one (CAS 1342282-91-0)
- 3,5-Dibromophenyl acetate (CAS 909389-74-8)
- 2-(4-Bromophenoxy)propanoyl chloride (CAS 56895-12-6)
- 4-(Thiophen-2-ylmethyl)phenol (CAS 91680-55-6)
- Peptide 436 (CAS CATO-CPTD788436)
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