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72516-55-3

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72516-55-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72516-55-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,5,1 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72516-55:
(7*7)+(6*2)+(5*5)+(4*1)+(3*6)+(2*5)+(1*5)=123
123 % 10 = 3
So 72516-55-3 is a valid CAS Registry Number.

72516-55-3Relevant articles and documents

TRANSFORMATIONS OF HALOCYCLOPROPANES-VI. REACTIONS OF 7,7-DICHLOROBICYCLOHEPTANE WITH SOME ORGANIC ANIONS IN NONPOLAR MEDIA

Arct, J.,Migaj, B.

, p. 953 - 956 (2007/10/02)

The reactions of 7,7-dichlorobicyclo-heptane, 1 with organic bases were carried out in benzene and THF.The reaction course of 1 in nonpolar media is different from that in DMSO; the rearrangements of cyclopropene 3 taking place in the former. 8 is produced by the shift of double bond into the C6 ring.The cyclopropene-carbene isomerization and reactions of carbenes 14 and 15 with alkoxide anions are the probable route leading to the other products.

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