3-Methyl-1,2-benzisoxazole-d4 CAS 1189967-37-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1189967-37-0
Molecular Formula-
Molecular Weight137.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methyl-1,2-benzisoxazole-d4 CAS 1189967-37-0 chemical structure

Description

Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 3-Methyl-1,2-benzisoxazole-d4 is typically pale yellow to yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 137.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

3-Methyl-1,2-benzisoxazole-d4 (CAS 1189967-37-0) is a high-purity analytical reference standard with the molecular formula C8H3D4NO and a molecular weight of 137.17 g/mol.

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.

As a certified reference material (CRM), 3-Methyl-1,2-benzisoxazole-d4 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 FormulaC8H3D4NO
Molecular Weight137.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms1

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