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121151-80-2

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121151-80-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121151-80-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,5 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121151-80:
(8*1)+(7*2)+(6*1)+(5*1)+(4*5)+(3*1)+(2*8)+(1*0)=72
72 % 10 = 2
So 121151-80-2 is a valid CAS Registry Number.

121151-80-2Downstream Products

121151-80-2Relevant articles and documents

ESR studies of free radicals derived from hydroxyquinones. II. Group 14 adducts of hydroxyanthraquinones and some phosphorus adducts of chrysazin

Ahmed, Ibrahim M.,Hudson, Andrew,Alberti, Angelo

, p. 9 - 16 (2007/10/02)

The reactions of Group 14 metal-centred radicals with 9,10-anthraquinone, 1,4-anthraquinone, and eight hydroxy-substituted 9,10-anthraquinones have been investigated by ESR spectroscopy.The results are discussed in terms of the regioselectivity of the addition reaction, the influence of hydroxyl substituents on the electron spin density distribution, and the effect of varying the Group 14 metal from silicon through to lead. 1,8-Dihydroxyanthraquinone (chrysazin) gives unusually persistent adducts with Group 14 metal-centred radicals and is also a spin-trap for phosphorus-centred radicals.

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