Specification Sheet
Product Name Caffeic acid,
matrix substance for MALDI-MS, ≥99.0% (HPLC)
Product Number 60018
Product Brand SIAL
CAS Number 331-39-5
Molecular Weight 180.16
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Light Yellow
APPEARANCE (FORM) Powder
TITRATION (T) NAOH 0.1M 98.5 - 101.5 %
PURITY (HPLC AREA %) ≥ 99.0 %
SOLUBILITY (COLOR) Very Light Yellow to Dark Yellow
SOLUBILITY (TURBIDITY) Clear
SOLUBILITY (METHOD) 1G IN 10ML METHANOL
CARBON CONTENT 60.00 % (THEORY)
HYDROGEN CONTENT 4.48 % (THEORY)
PROTON NMR SPECTRUM CONFORMS TO STRUCTURE
TEST BY UV SPECTROSCOPY CORRESPONDS TO REQUIREMENTS
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
BARIUM (ICP) ≤ 5.0 mg/kg
CALCIUM (ICP) ≤ 20 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) ≤ 20 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 42 MONTHS