3331-46-2 7-OXO-7,8,9,10-TETRAHYDROBENZO[A]PYRENE 9,10-DIHYDROBENZO[A]PYREN-7(8H)-ONE 9,10-DIHYDROBENZO[A]PYRENE-7[8H]-ONE 9,10-DIHYDROBENZO[PQR]TETRAPHEN-7(8H)-ONE 9,10-Dihydro-8H-benzo[def]chrysen-7-one AS06637 CAS 3331-46-2

Purity 97%+In StockPharmaceutical Standards
CAS No.3331-46-2
Molecular FormulaC20H30O
Molecular Weight286.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3331-46-2 7-OXO-7,8,9,10-TETRAHYDROBENZO[A]PYRENE 9,10-DIHYDROBENZO[A]PYREN-7(8H)-ONE 9,10-DIHYDROBENZO[A]PYRENE-7[8H]-ONE 9,10-DIHYDROBENZO[PQR]TETRAPHEN-7(8H)-ONE 9,10-Dihydro-8H-benzo[def]chrysen-7-one AS06637 CAS 3331-46-2 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 3331-46-2 7-OXO-7,8,9,10-TETRAHYDROBENZO[A]PYRENE 9,10-DIHYDROBENZO[A]PYREN-7(8H)-ONE 9,10-DIHYDROBENZO[A]PYRENE-7[8H]-ONE 9,10-DIHYDROBENZO[PQR]TETRAPHEN-7(8H)-ONE 9,10-Dihydro-8H-benzo[def]chrysen-7-one AS06637.

3331-46-2 7-OXO-7,8,9,10-TETRAHYDROBENZO[A]PYRENE 9,10-DIHYDROBENZO[A]PYREN-7(8H)-ONE 9,10-DIHYDROBENZO[A]PYRENE-7[8H]-ONE 9,10-DIHYDROBENZO[PQR]TETRAPHEN-7(8H)-ONE 9,10-Dihydro-8H-benzo[def]chrysen-7-one AS06637 (CAS 3331-46-2), molecular formula C20H30O and molecular weight 286.45 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, a hydroxyl group, an ether linkage, 3331-46-2 7-OXO-7,8,9,10-TETRAHYDROBENZO[A]PYRENE 9,10-DIHYDROBENZO[A]PYREN-7(8H)-ONE 9,10-DIHYDROBENZO[A]PYRENE-7[8H]-ONE 9,10-DIHYDROBENZO[PQR]TETRAPHEN-7(8H)-ONE 9,10-Dihydro-8H-benzo[def]chrysen-7-one AS06637 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.45 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).

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 FormulaC20H30O
Molecular Weight286.45 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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