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17403-82-6

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17403-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17403-82-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,4,0 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17403-82:
(7*1)+(6*7)+(5*4)+(4*0)+(3*3)+(2*8)+(1*2)=96
96 % 10 = 6
So 17403-82-6 is a valid CAS Registry Number.

17403-82-6Relevant articles and documents

Structural Effects on Twisted Olefin Triplet Lifetimes. Styrene Derivatives

Caldwell, R. A.,Cao, C. V.

, p. 6174 - 6180 (2007/10/02)

The triplet lifetimes in methanol of a series of anisylalkenes and anisylcycloalkenes, including several phenyl analogues, have been determined by nanosecond flash kinetic absorption spectrophotometry with nitrogen laser excitation.Electron-transfer scavenging by paraquat dication, PQ2+, (methyl viologen) afforded the readily detectable reduced species PQ+*.Both triplet lifetimes and rate constants for electron transfer from triplet to PQ2+ were determined.The results indicate that acyclic styrene triplets prefer the twisted, "1,2-biradical" structure.Lifetimes are increased by vinyl deuteration, by increasing alkylation, and by constraint within a small ring; in the absence of geometric constraints, the dominant influence on the triplet lifetimes is the extent of substitution at the double bond.Mechanisms for intersystem crossing are discussed, and the tentative conclusion is reached that nuclear motions are important.

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