5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one CAS 165686-37-3

Purity 97%+In StockPharmaceutical Standards
CAS No.165686-37-3
Molecular FormulaC8H12N2O
Molecular Weight152.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one CAS 165686-37-3 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 5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one.

5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one (CAS 165686-37-3), molecular formula C8H12N2O and molecular weight 152.19 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one (C8H12N2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 5,5-Dimethyl-3,3a,4,5-tetrahydrocyclopenta[c]pyrazol-6(2H)-one 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 FormulaC8H12N2O
Molecular Weight152.19 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2004
Nitrogen Atoms2

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