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69434-38-4

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69434-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69434-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,4,3 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69434-38:
(7*6)+(6*9)+(5*4)+(4*3)+(3*4)+(2*3)+(1*8)=154
154 % 10 = 4
So 69434-38-4 is a valid CAS Registry Number.

69434-38-4Relevant articles and documents

On the chemoselectivity and mechanism of desilylation of tert- butyldimethylsilyl ethers with TMSOTf

Hunter, Roger,Hinz, Wolfgang,Richards, Philip

, p. 3643 - 3646 (1999)

A modified literature procedure is presented for desilylating primary and secondary tert-butyldimethylsilyl ethers involving TMSOTf followed by breakdown of the bis-silyloxonium ion in methanol. The chemoselectivity of the process with respect to TBDPS, T

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