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1290631-56-9

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1290631-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1290631-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,0,6,3 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1290631-56:
(9*1)+(8*2)+(7*9)+(6*0)+(5*6)+(4*3)+(3*1)+(2*5)+(1*6)=149
149 % 10 = 9
So 1290631-56-9 is a valid CAS Registry Number.

1290631-56-9Downstream Products

1290631-56-9Relevant articles and documents

Stereoselective synthesis of oxazino[4,3-a]indoles employing the oxa-Pictet-Spengler reaction of indoles bearing N-tethered vinylogous carbonate

Gharpure, Santosh J.,Sathiyanarayanan

supporting information; experimental part, p. 3625 - 3627 (2011/05/02)

A one-pot, sequential 2,3-bis-functionalization of indoles bearing N-tethered vinylogous carbonates employing an intramolecular oxa-Pictet-Spengler reaction followed by electrophilic substitution is developed for the stereoselective synthesis of oxazino[4,3-a]indoles.

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