4-(2,3-epoxypropoxy)carbazole   CAS 51997-51-4

1. Appearance
    Nearly colorless to slightly colored solid 
2. Loss on drying(n=1)                0.5%max
3. Color of solution(n=1)              not more colored than reference solution B5
4.  Related substances, HPLC(n=1)
    1,3-Bis(carbazolyl-4-oxy)propan-2-ol     1.0%max
    Each other impurity                    0.3%max 
5. Assay HPLC(n=1)                    99.0%min