Cas 1421706-89-9,C<sub>20</sub>H<sub>16</sub>O

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Check Digit Verification of cas no

The CAS Registry Mumber 1421706-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,7,0 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1421706-89:
(9*1)+(8*4)+(7*2)+(6*1)+(5*7)+(4*0)+(3*6)+(2*8)+(1*9)=139
139 % 10 = 9
So 1421706-89-9 is a valid CAS Registry Number.

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1421706-89-9Relevant academic research and scientific papers

Silver(i)-mediated highly enantioselective synthesis of axially chiral allenes under thermal and microwave-assisted conditions

Lo, Vanessa Kar-Yan,Zhou, Cong-Ying,Wong, Man-Kin,Che, Chi-Ming

supporting information; experimental part, p. 213 - 215 (2010/05/01)

Silver(i) salts mediated stereospecific transformation of optically active propargylamines to axially chiral allenes with excellent enantioselectivities (17 examples with 96-99% ee; one substrate with 91% ee) without subsequent racemization.

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