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1277165-90-8

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1277165-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1277165-90-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,7,1,6 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1277165-90:
(9*1)+(8*2)+(7*7)+(6*7)+(5*1)+(4*6)+(3*5)+(2*9)+(1*0)=178
178 % 10 = 8
So 1277165-90-8 is a valid CAS Registry Number.

1277165-90-8Downstream Products

1277165-90-8Relevant articles and documents

One-pot synthesis of pyrrolo[3,2-d ]pyridazines and pyrrole-2,3-diones via zirconocene-mediated four-component coupling of Si-tethered diyne, nitriles, and azide

Zhang, Shaoguang,Zhao, Jing,Zhang, Wen-Xiong,Xi, Zhenfeng

, p. 1626 - 1629 (2011)

A one-pot synthesis of pyrrolo[3,2-d]pyridazine derivatives via zirconocene-mediated four-component coupling of one Si-tethered diyne, two nitriles, and one azide is reported. When TMSN3 was used, pyrrole-2,3-diones were formed in good yields.

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