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1228699-88-4

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1228699-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1228699-88-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,6,9 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1228699-88:
(9*1)+(8*2)+(7*2)+(6*8)+(5*6)+(4*9)+(3*9)+(2*8)+(1*8)=204
204 % 10 = 4
So 1228699-88-4 is a valid CAS Registry Number.

1228699-88-4Downstream Products

1228699-88-4Relevant articles and documents

Highly efficient synthesis of quaternary α-hydroxy phosphonates via lewis acid-catalyzed hydrophosphonylation of ketones

Zhou, Xin,Liu, Yanling,Chang, Lu,Zhao, Jiannan,Shang, Deju,Liu, Xiaohua,Lin, Lili,Feng, Xiaoming

supporting information; experimental part, p. 2567 - 2572 (2009/12/27)

A Lewis acid catalyst has been first applied to the hydrophosphonylation of ketones, giving the corresponding quaternary a-hydroxy phosphonates in high yields (up to 98%). The present method was highly tolerable for functionalized ketones. Moreover, the f

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