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1403814-57-2

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1403814-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1403814-57-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,3,8,1 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1403814-57:
(9*1)+(8*4)+(7*0)+(6*3)+(5*8)+(4*1)+(3*4)+(2*5)+(1*7)=132
132 % 10 = 2
So 1403814-57-2 is a valid CAS Registry Number.

1403814-57-2Downstream Products

1403814-57-2Relevant academic research and scientific papers

Organocatalytic asymmetric Michael addition of unprotected 3-substituted oxindoles to 1,4-naphthoquinone

Yu, Jin-Sheng,Zhou, Feng,Liu, Yun-Lin,Zhou, Jian

supporting information, p. 1360 - 1365 (2012/10/29)

We reported the first example of organocatalytic Michael addition of unprotected 3-prochiral oxindoles 1 to 1,4-naphthoquinone. Quinidine derivative (DHQD)2PYR was found to be able to catalyze this reaction in up to 83% ee, with moderate to exc

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