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74975-62-5

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74975-62-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74975-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,7 and 5 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74975-62:
(7*7)+(6*4)+(5*9)+(4*7)+(3*5)+(2*6)+(1*2)=175
175 % 10 = 5
So 74975-62-5 is a valid CAS Registry Number.

74975-62-5Downstream Products

74975-62-5Relevant articles and documents

Structural Effects on the Intramolecular Electron Transfer Induced Decomposition of a Series of 1,2-Dioxetanes Derived from 9-Alkylidene-10-methylacridans

Lee, Chris,Singer, Lawrence A.

, p. 3823 - 3829 (1980)

A series of 1,2-dioxetanes derived from 9-alkylidene-10-methylacridans, Ar=CR1R2, were studied: 5, R1=R2=phenyl; 1, R1=phenyl, R2=H; 6, R1=R2=H.Thermal decomposition of these dioxetanes in the temperature range -30 to +35 deg C is accompanied by chemiluminescence (CL), N-methylacridone(NMA) fluorescence, with representative room temperature ΦCL's of 0.11, 0.04, and ca.10-5 and room temperature lifetimes of ca.2000, ca.60, and ca.6 s, for 5, 1, and 6, respectively.The only triplet states produced in these system is by 1NMA* 3NMA* as indicated by triplet counting experiments.The CL from decomposition of 1 is subject to off/on switching by successive addition of acetic acid and triethylamine.The proposed mechanism involves intramolecular electron transfer (N to peroxide bond) induced decomposition, via a boat conformation, to a dipolar intermediate that partitions between chemiexcitation and nonchemiexcitation pathways.The related low CL levels from decomposition of 1 when prepared by triphenyl phosphite ozonide oxygenation, and the CL enhancement with added triethylamine, are explained.

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