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3762-19-4

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3762-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3762-19-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,6 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3762-19:
(6*3)+(5*7)+(4*6)+(3*2)+(2*1)+(1*9)=94
94 % 10 = 4
So 3762-19-4 is a valid CAS Registry Number.

3762-19-4Relevant articles and documents

REACTIONS OF DICHLOROCARBENE AND OF THE SIMMONS-SMITH REAGENT WITH THE DIMER AND TRIMER OF CYCLOPENTADIENE AND THE DIMER OF SPIROHEPTA-4,6-DIENE

Molchanov, A. P.,Kostikov, R. R.,Chernyshev, V. A.

, p. 1444 - 1449 (2007/10/02)

Dichlorocarbene reacts with the exo dimer of cyclopentadiene (exo-tricyclo2,6>deca-3,8-diene) and the trimer of cyclopentadiene (exo-endo-pentacyclo2,7.09,13>pentadeca-4,10-diene) at the cyclopentene double bond.The Simmons-Smith reagent, prepared from methylene iodide in presence of a zinc-silver couple, reacts with the same hydrocarbons and also with the dimer of spirohepta-4,6-diene 2,6>deca-3,8-diene)-10-spirocyclopropane> nonselectively at both double bonds, whereas it adds to the trimer of cyclopentadiene only at the norbornene double bond.

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