2-Nitrotoluene CAS 88-72-2

Purity >95%In StockPharmaceutical Standards
CAS No.88-72-2
Molecular FormulaC7H7NO2
Molecular Weight137.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Nitrotoluene CAS 88-72-2 chemical structure

Description

2-Nitrotoluene (CAS 88-72-2) is a high-purity analytical reference standard with the molecular formula C7H7NO2 and a molecular weight of 137.14 g/mol.

Structurally, 2-Nitrotoluene (C7H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 137.14 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC7H7NO2
Molecular Weight137.14 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1

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