3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5 CAS 3350-78-5

Purity 97%+In StockPharmaceutical Standards
CAS No.3350-78-5
Molecular FormulaC5H7ClO
Molecular Weight118.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5 CAS 3350-78-5 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 3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5.

3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5 (CAS 3350-78-5) is a high-purity analytical reference standard with the molecular formula C5H7ClO and a molecular weight of 118.56 g/mol.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, 3-Methylbut-2-enoyl chloride contains 400 ppm phenothiazine as inhibitor 3,3-Dimethylacryloyl chloride 3-Methylcrotonoyl chloride Senecioyl chloride 3-Methyl-2-butenoyl chloride 3350-78-5 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 118.56 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC5H7ClO
Molecular Weight118.56 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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