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674303-40-3

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674303-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 674303-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,3,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 674303-40:
(8*6)+(7*7)+(6*4)+(5*3)+(4*0)+(3*3)+(2*4)+(1*0)=153
153 % 10 = 3
So 674303-40-3 is a valid CAS Registry Number.

674303-40-3Downstream Products

674303-40-3Relevant articles and documents

An Efficient Synthesis of Bicyclic Amidines by Intramolecular Cyclization

Kumagai, Naoya,Matsunaga, Shigeki,Shibasaki, Masakatsu

, p. 478 - 482 (2007/10/03)

A real step-saver! In a one-step procedure for the synthesis of bicyclic amidines, the azido group is used directly as the nucleophile in the ring-forming reaction. Many functionalized and chiral bicyclic amidines were synthesized in good yield under mild reaction conditions.

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