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113303-95-0

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113303-95-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113303-95-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,3,0 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 113303-95:
(8*1)+(7*1)+(6*3)+(5*3)+(4*0)+(3*3)+(2*9)+(1*5)=80
80 % 10 = 0
So 113303-95-0 is a valid CAS Registry Number.

113303-95-0Relevant articles and documents

AN EFFICIENT SYNTHESIS OF tert-ALKOXYETHYNES

Pericas, Miquel A.,Serratosa, Felix,Valenti, Eduard

, p. 2311 - 2316 (2007/10/02)

The synthesis of tert-butoxyethyne (1a) and (1-adamantyloxy)ethyne (1b) has been performed by a three step sequence starting from ethyl vinyl ether.Overall yields are 34 and 67percent, respectively.The process is insensitive to the steric hindrance of the tertiary alcohol used and can be conveniently modified for the preparation of 1-tert-alkoxy-1-alkynes in high yield, without isolation of the intermediate 1-tert-alkoxyethyne.

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