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Merck
CN

Specification Sheet

Product Name
Dehydrocostus lactone analytical standard

Product Number
42575

Product Brand
sial

CAS Number
477-43-0

Molecular Weight
230.30

Test

Specification

APPEARANCE (COLOR)White to Light Yellow and Faint Beige to Light Beige
APPEARANCE (FORM)Powder or Crystals
PURITY (GC AREA %)≥ 98.0 %
SPECIFIC ROTATION (20/D)-17.0 - -11.0 Degrees
CONCENTRATIONC=1 in TRICHLOROMETHANE
WATERCalculated from Elemental Analysis
CARBON CONTENT78.23% (Theory)
HYDROGEN CONTENT7.88% (Theory)
PROTON NMR SPECTRUMCONFORMS TO STRUCTURE
EXPIRY PERIOD36 MONTHS