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81423-94-1

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81423-94-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81423-94-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,2 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81423-94:
(7*8)+(6*1)+(5*4)+(4*2)+(3*3)+(2*9)+(1*4)=121
121 % 10 = 1
So 81423-94-1 is a valid CAS Registry Number.

81423-94-1Downstream Products

81423-94-1Relevant articles and documents

Benzothiophene S-Oxides and Related Compounds from the Reactions of Arylalkynes and Antimony Pentafluoride in Sulfur Dioxide

Fan, Ru-Lin,Dickstein, Jerome I.,Miller, Sidney I.

, p. 2466 - 2469 (2007/10/02)

When treated with antimony pentafluoride and benzene in liquid sulfur dioxide, certain alkynes yield 2-X-3-phenylbenzothiophene S-oxides (X = Ph, Cl, Br) or 1,1-diphenyl-2-X-vinylsulfinic acids (X = H, Br).Though limited, this is a facile route to both types of compounds.

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