2-Methyl-5-nitrobenzonitrile CAS 939-83-3
| CAS No. | 939-83-3 |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Methyl-5-nitrobenzonitrile (C8H6N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 162.15 g/mol, it falls into the medium-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).
2-Methyl-5-nitrobenzonitrile (CAS 939-83-3) is a high-purity analytical reference standard with the molecular formula C8H6N2O2 and a molecular weight of 162.15 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Methyl-5-nitrobenzonitrile 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 | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 3-Methyl-5-nitrobenzonitrile (CAS 124289-22-1)
- 2-Methyl-6-nitrobenzonitrile (CAS 1885-76-3)
- 3-Methyl-2-nitrobenzonitrile (CAS 1885-77-4)
- 2-Methyl-3-nitrobenzonitrile (CAS 71516-35-3)
- 2-Methyl-4-nitrobenzonitrile (CAS 89001-53-6)
- 3-Methyl-4-nitrobenzonitrile (CAS 96784-54-2)
- 4-Methyl-3-nitrobenzonitrile (CAS 939-79-7)
- 5-Methyl-2-nitrobenzonitrile (CAS 64113-86-6)
Recommended Standards
- 2-Methyl-5H-pyrrolo[3,4-b]pyridine-5,7(6H)-dione (CAS 53636-28-5)
- 2-Methylpteridin-4-ol (CAS 34244-78-5)
- 2-MEthyl-4-nitrophenyl isocyanide (CAS 2920-24-3)
- 2-Methylpyrido[4,3-d][1,3]oxazin-4-one (CAS 3810-23-9)
- 86989-19-7 Diderroside (CAS 86989-19-7)
- 2-(Methylthio)-5,6,7,8-tetrahydroquinazoline-6-carboxylic acid (CAS 1542029-69-5)
- Azetidin-1-yl(4-bromopyridin-2-yl)methanone (CAS 947534-66-9)
- 1-(4-Methoxyphenyl)-1-oxopropan-2-yl 4-aminobenzoate (CAS 1160264-16-3)
- 1-(1-(3-(Trifluoromethyl)benzyl)-1H-1,2,3-triazol-4-yl)ethan-1-one (CAS 1443291-23-3)
- Pitavastatin Impurity 16 (CAS 849811-78-5)
- 2-(4-Bromo-phenyl)-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridine (CAS 885279-61-8)
- Olaparib Impurity 21 (CAS 54769-22-1)
- Ethyl 7-amino-1,3-dioxaindane-5-carboxylate (CAS 1343291-63-3)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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