1,3-Dimethyl-2-Nitrosobenzene (Mixture of Monomer and Dimer) CAS 19519-71-2
| CAS No. | 19519-71-2 |
| Molecular Formula | C8H9NO |
| Molecular Weight | 135.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,3-Dimethyl-2-Nitrosobenzene (Mixture of Monomer and Dimer).
1,3-Dimethyl-2-Nitrosobenzene (Mixture of Monomer and Dimer) (CAS 19519-71-2) is a high-purity analytical reference standard with the molecular formula C8H9NO and a molecular weight of 135.16 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 1,3-Dimethyl-2-Nitrosobenzene (Mixture of Monomer and Dimer) is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 135.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1,3-Dimethyl-2-Nitrosobenzene (Mixture of Monomer and Dimer) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9NO |
| Molecular Weight | 135.16 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | 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.) | 1962 |
| Nitrogen Atoms | 1 |
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