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301670-61-1

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301670-61-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 301670-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,1,6,7 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 301670-61:
(8*3)+(7*0)+(6*1)+(5*6)+(4*7)+(3*0)+(2*6)+(1*1)=101
101 % 10 = 1
So 301670-61-1 is a valid CAS Registry Number.

301670-61-1Downstream Products

301670-61-1Relevant articles and documents

A facile route to a novel aza-crown ether incorporating three thiophene moieties

Halfpenny,Rooney,Sloman

, p. 6223 - 6226 (2000)

The preparation of the first of a novel type of large thiophene-containing aza-crown ether is reported. The macrocycle is synthesised by linking a 3,4-dialkoxythiophene moiety with two 3-hydroxythiophene units and ring closure is effected by reaction with piperazine via the Mannich reaction. (C) 2000 Elsevier Science Ltd.

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