89539-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89539-19-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89539-19:
(7*8)+(6*9)+(5*5)+(4*3)+(3*9)+(2*1)+(1*9)=185
185 % 10 = 5
So 89539-19-5 is a valid CAS Registry Number.
89539-19-5Relevant articles and documents
CHEMOSELECTIVE PHOSPHORYLATION OF N-UNPROTECTED NUCLEOSIDES VIA ALUMINIUM ALKOXIDES
Hayakawa, Y.,Aso, Y.,Uchiyama, M.,Noyori, Y.
, p. 5641 - 5644 (1983)
An O-selective phosphorylation of NH2-unprotected nucleosides has been achieved via the aluminum alkoxides.