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107776-87-4

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107776-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107776-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,7 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 107776-87:
(8*1)+(7*0)+(6*7)+(5*7)+(4*7)+(3*6)+(2*8)+(1*7)=154
154 % 10 = 4
So 107776-87-4 is a valid CAS Registry Number.

107776-87-4Relevant articles and documents

Synthesis of nitrogen heterocycles by the ring opening of pyridinium salts

Kearney, Aaron M.,Vanderwal, Christopher D.

, p. 7803 - 7806 (2007/10/03)

(Chemical Equation Presented) The century-old ring-opening reaction of pyridinium salts with tethered nucleophiles has been harnessed for a synthesis of substituted indoles and related nitrogen heterocyles. Extension of this method could lead to oxygen- and sulfur-containing heterocycles and carbocycles, as well as to applications in natural product synthesis and medicinal chemistry.

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