694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206 CAS 694-28-0

Purity 97%+In StockPharmaceutical Standards
CAS No.694-28-0
Molecular FormulaC5H7ClO
Molecular Weight118.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206 CAS 694-28-0 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 694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206.

694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206 (CAS 694-28-0) is a high-purity analytical reference standard with the molecular formula C5H7ClO and a molecular weight of 118.56 g/mol.

Structurally, 694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206 (C5H7ClO) contains a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 118.56 g/mol, it falls into the low-molecular-weight range. 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.

As a certified reference material (CRM), 694-28-0 2-Chlorocyclopentan-one Cyclopentanone, 2-chloro- 4-07-00-00012 (Beilstein Handbook Reference) BRN 1098899 alpha-Chlorocyclopentanone 2-Chlorocyclopentanone 2-Chloro-1-cyclopentanone EINECS 211-769-9 NSC 60206 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 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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