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136226-19-2

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136226-19-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136226-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,2 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136226-19:
(8*1)+(7*3)+(6*6)+(5*2)+(4*2)+(3*6)+(2*1)+(1*9)=112
112 % 10 = 2
So 136226-19-2 is a valid CAS Registry Number.

136226-19-2Relevant articles and documents

Triphenylphosphoranylidene substituted heterocycles as versatile intermediates

Katritzky, Alan R.,Vincek, Adam S.,Steel, Peter J.

experimental part, p. 1401 - 1423 (2009/07/17)

N-Cbz-(α-aminoacyl)benzotriazoles 5a-e reacted with (stabilized-methylene)triphenylphosphoranes 6 and 13 to give the corresponding esters 7a-e (66-91%) or nitriles 14a-e (63-85%). Deprotection of N-Cbz-γ-amino-β-oxo-α-triphenylphosphoranylidene esters 7a-

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