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144090-61-9

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144090-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144090-61-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,9 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144090-61:
(8*1)+(7*4)+(6*4)+(5*0)+(4*9)+(3*0)+(2*6)+(1*1)=109
109 % 10 = 9
So 144090-61-9 is a valid CAS Registry Number.

144090-61-9Relevant articles and documents

Stereoselective Conversion of L-Quebrachitol into a Novel Hydroxylated Caprolactam: Total Synthesis of Bengamide B

Chida, Noritaka,Tobe, Takahiko,Murai, Katsuyuki,Yamazaki, Kaori,Ogawa, Seiichiro

, p. 2383 - 2388 (2007/10/02)

The stereoselective synthesis of the novel marine natural product, bengamide B (1), starting from L-quebrachitol (3) is described.The hydroxylated caprolactam portion (2a) in 1 was prepared from (+)-conduramine derivative (7), whose amino functionality wa

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