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137384-88-4

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137384-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137384-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,8 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137384-88:
(8*1)+(7*3)+(6*7)+(5*3)+(4*8)+(3*4)+(2*8)+(1*8)=154
154 % 10 = 4
So 137384-88-4 is a valid CAS Registry Number.

137384-88-4Relevant articles and documents

Intramolecular Acylation of an α-Sulfonyl Anion Generated via Halogen-metal Exchange of an α-Halosulfone Bearing an Unsymmetrical Anhydride

Anderson, M. B.,Lamothe, M.,Fuchs, P. L.

, p. 4457 - 4460 (2007/10/02)

α-Halosulfones are useful for the in situ preparation of α-sulfonyl anions in the presence of acylating agents bearing enolizable protons.Inter- and intramolecular acylations can be effected by halogen-metal exchange at low temperature.

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