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78522-89-1

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78522-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78522-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,2 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78522-89:
(7*7)+(6*8)+(5*5)+(4*2)+(3*2)+(2*8)+(1*9)=161
161 % 10 = 1
So 78522-89-1 is a valid CAS Registry Number.

78522-89-1Relevant articles and documents

Partially Fluorinated Heterocyclic Compounds. Part 14. Syntheses of 4,5,6,7-Tetrafluoro-2,3-dihydro-2-methyl-1-benzothiophen and 5,6,7,8-Tetrafluorothiochroman from Pentafluorophenyl Prop-2-enyl Sulphide via the Claisen Rearrangement Intermediate and the

Brooke, Gerald M.,Wallis, Derek I.

, p. 1659 - 1664 (2007/10/02)

Prop-2-enyl 2,3,4,5-tetrafluorophenyl sulphide (1) undergoes a Claisen rearrangement in NN-diethylaniline to give 4,5,6,7-tetrafluoro-2,3-dihydro-2-methyl-1-benzothiophen (4) and 5,6,7,8-tetrafluorothiochroman (5).Pentafluorophenyl prop-2-enyl sulphide (3

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