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138611-32-2

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138611-32-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138611-32-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,1 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138611-32:
(8*1)+(7*3)+(6*8)+(5*6)+(4*1)+(3*1)+(2*3)+(1*2)=122
122 % 10 = 2
So 138611-32-2 is a valid CAS Registry Number.

138611-32-2Upstream product

138611-32-2Relevant articles and documents

Selective deprotection of tert-butyldimethylsilyl ether with lithium bromide and 18-crown-6

Tandon, Manish,Begley, Tadhg P.

, p. 2953 - 2959 (1997)

Lithium bromide, in the presence of a crown ether, has been found to selectively remove primary tert-butyldimethylsilyl ethers under controlled conditions. This selectivity has been utilized to synthesize 3'-TBDMS-2'- deoxyuridine in one step from the diprotected compound.

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