139488-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139488-56-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,8 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139488-56:
(8*1)+(7*3)+(6*9)+(5*4)+(4*8)+(3*8)+(2*5)+(1*6)=175
175 % 10 = 5
So 139488-56-5 is a valid CAS Registry Number.
139488-56-5Relevant articles and documents
REACTION OF 6-OXO-6H-ANTHRAISOXAZOLES WITH CYCLOHEXENE
Gornostaev, L. M.,Medvedeva, S. A.
, p. 1547 - 1549 (2007/10/02)
The reaction of 6-oxo-6H-anthraisoxazoles with cyclohexene in the presence of aluminum chloride leads to the corresponding 1-cyclohexylamino-9,10-anthraquinones.