Pcb No. 28 CAS 7012-37-5

Purity >95%In StockPharmaceutical Standards
CAS No.7012-37-5
Molecular FormulaC12H7Cl3
Molecular Weight257.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pcb No. 28 CAS 7012-37-5 chemical structure

Description

Pcb No. 28 (CAS 7012-37-5) is a high-purity analytical reference standard with the molecular formula C12H7Cl3 and a molecular weight of 257.54 g/mol.

Owing to chlorine substitution, an aromatic ring system, Pcb No. 28 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 257.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC12H7Cl3
Molecular Weight257.54 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Halogen ContentCl-containing

Recommended Standards

Why CATO?