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69521-36-4

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69521-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69521-36-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,2 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69521-36:
(7*6)+(6*9)+(5*5)+(4*2)+(3*1)+(2*3)+(1*6)=144
144 % 10 = 4
So 69521-36-4 is a valid CAS Registry Number.

69521-36-4Downstream Products

69521-36-4Relevant articles and documents

Regioselective O-p-Toluenesulfonylation of Nucleosides Under Solid/Liquid Phase-Transfer Conditions

Grouiller, Annie,Essadiq, Hassan,Najib, Boubker,Moliere, Patrick

, p. 1121 - 1122 (2007/10/02)

The regioselective mono-O-p-toluenesulfonylation of nucleosides under phase-transfer conditions in which dibutyltin oxide acts as a base is reported.The selectivity is dependent upon both the solvent and ammonium quaternary salt.

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