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1609985-46-7

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1609985-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609985-46-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,9,8 and 5 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1609985-46:
(9*1)+(8*6)+(7*0)+(6*9)+(5*9)+(4*8)+(3*5)+(2*4)+(1*6)=217
217 % 10 = 7
So 1609985-46-7 is a valid CAS Registry Number.

1609985-46-7Downstream Products

1609985-46-7Relevant articles and documents

Nickel-catalyzed oxidative cyclotrimerization of α-amino ketones: Selective synthesis of pyrazoles

Tang, Ri-Yuan,Guo, Xiao-Kang,Hu, Ming,Wang, Zhi-Qiang,Xiang, Jian-Nan,Li, Jin-Heng

supporting information, p. 64 - 68 (2014/01/06)

A new strategy for the synthesis of 3-methylene-2,3-dihydro-1H-pyrazoles is presented by Ni-catalyzed oxidative cyclotrimerization of α-amino ketones. This unprecedented method allows three α-amino ketones to undergo sequential multiple deprotonations and deamination through two C-C bonds and one N-N bond formation cascade. Georg Thieme Verlag Stuttgart · New York.

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