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1337978-99-0

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1337978-99-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1337978-99-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,7,9,7 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1337978-99:
(9*1)+(8*3)+(7*3)+(6*7)+(5*9)+(4*7)+(3*8)+(2*9)+(1*9)=220
220 % 10 = 0
So 1337978-99-0 is a valid CAS Registry Number.

1337978-99-0Downstream Products

1337978-99-0Relevant articles and documents

One-pot synthesis of indole-fused scaffolds via gold-catalyzed tandem annulation reactions of 1,2-bis(alkynyl)-2-en-1-ones with indoles

Xie, Xin,Du, Xiangwei,Chen, Yifeng,Liu, Yuanhong

, p. 9175 - 9181 (2011/12/15)

The gold-catalyzed tandem cyclization of 1,2-bis(alkynyl)-2-en-1-ones with indoles offers an efficient and straightforward route to indole-fused polycyclic systems. The process is realized through a cascade carbonyl-yne cyclization/Friedel-Crafts/indole-yne cyclization sequence catalyzed by a single-pot catalyst of gold.

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