Specification Sheet
Product Name
(R)-Naproxen pharmaceutical impurity standard
Product Number
82170
Product Brand
sial
CAS Number
23979-41-1
Molecular Weight
230.26
Test | Specification |
|---|---|
| APPEARANCE (COLOR) | White to Off White |
| APPEARANCE (FORM) | Powder or Crystals |
| PURITY (HPLC AREA %) | ≥ 98.0 % |
| IDENTIFICATION (LC-MS) | CORRESPONDS TO REQUIREMENTS |
| SPECIFIC ROTATION (20/D) | -71 ± 4 Degrees |
| CONCENTRATION | C=0.1 in TRICHLOROMETHANE |
| WATER | ≤ 0.5 % |
| CARBON CONTENT | 72.7 - 73.3 % |
| HYDROGEN CONTENT | 5.8 - 6.4 % |
| PROTON NMR SPECTRUM | CONFORMS TO STRUCTURE |
| EXPIRY PERIOD | 36 MONTHS |