128839-24-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128839-24-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,3 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128839-24:
(8*1)+(7*2)+(6*8)+(5*8)+(4*3)+(3*9)+(2*2)+(1*4)=157
157 % 10 = 7
So 128839-24-7 is a valid CAS Registry Number.
128839-24-7Relevant articles and documents
CYCLIZATION OF POLYFLUORO SUBSTITUTED 2-AMINO- AND 2-ACETYLAMINODIARYL ETHERS INTO DERIVATIVES OF PHENOXAZINE
Kolchina, E. F.,Gerasimova, T. N.
, p. 755 - 758 (1990)
Cylization of the diaryl ethers 4-RC5F4OC6H4NH2(NHAc)-2' (R = C-NO2, C-CF3, N), containing an electron accepting group in the fluorinated ring, proceeds in DMF in the presence of K2CO3 following a Smiles rearrangement.
