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1269799-89-4

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1269799-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1269799-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,9,7,9 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1269799-89:
(9*1)+(8*2)+(7*6)+(6*9)+(5*7)+(4*9)+(3*9)+(2*8)+(1*9)=244
244 % 10 = 4
So 1269799-89-4 is a valid CAS Registry Number.

1269799-89-4Relevant articles and documents

Facile synthesis of 3,4-diiododihydrothiophenes via electrophilic iodocyclization

Yang, Fan,Jin, Tienan,Bao, Ming,Yamamoto, Yoshinori

supporting information; experimental part, p. 936 - 938 (2011/03/21)

A facile, efficient, and general synthetic method for the construction of 3,4-diiododihydrothiophenes has been developed via the electrophilic iodocyclization of various S-hydroxy-2-butynyl ethanethioates. Application of the resulting iodine-containing pr

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