Specification Sheet
Product Name 2′,4′,6′-Trihydroxyacetophenone monohydrate,
matrix substance for MALDI-MS, ≥99.5%
Product Number 91928
Product Brand SIAL
CAS Number 249278-28-2
Molecular Weight 186.16
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Light Yellow
APPEARANCE (FORM) Powder or Crystals
TITRATION (NT) TBAOH 0.1M 99.5 - 100.5 %
PURITY (HPLC AREA %) ≥ 99.5 %
MELTING POINT 218 - 222 C
WATER 8 - 11 %
PROTON NMR SPECTRUM CONFORMS TO STRUCTURE
MISCELLANEOUS TESTS UV: CUT-OFF AT ≤ 400 NM (1 % IN ETHANOL)
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
CALCIUM (ICP) ≤ 200 mg/kg
CADMIUM (ICP) ≤ 5.0 mg/kg
COBALT (ICP) ≤ 5.0 mg/kg
CHROMIUM (ICP) ≤ 5.0 mg/kg
COPPER (ICP) ≤ 5.0 mg/kg
IRON (ICP) ≤ 5.0 mg/kg
POTASSIUM (ICP) ≤ 50 mg/kg
MAGNESIUM (ICP) ≤ 5.0 mg/kg
MANGANESE (ICP) ≤ 5.0 mg/kg
SODIUM (ICP) ≤ 50 mg/kg
NICKEL (ICP) ≤ 5.0 mg/kg
LEAD (ICP) ≤ 5.0 mg/kg
ZINC (ICP) ≤ 5.0 mg/kg
RECOMMENDED RETEST PERIOD 54 MONTHS