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Naphthalene, 2-(2,2-diphenylethyl)-1,2,3,4-tetrahydro-1,1-dimethyl-4-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139640-45-2

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139640-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139640-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,4 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139640-45:
(8*1)+(7*3)+(6*9)+(5*6)+(4*4)+(3*0)+(2*4)+(1*5)=142
142 % 10 = 2
So 139640-45-2 is a valid CAS Registry Number.

139640-45-2Downstream Products

139640-45-2Relevant academic research and scientific papers

Ring opening of 3,3,8,8-tetraphenyl-2,7-dioxaspirononane-1,6-dione and subsequent rearrangement reactions

Gupta, Ramesh Chandra,Seth, M,Bhaduri, A P

, p. 148 - 152 (2007/10/02)

Ring opening reactions of 3,3,8,8-tetraphenyl-2,7-dioxaspirononane-1,6-dione (1) with reagents like NaBH4 and methylmagnesium iodide have been studied.Rearrangement of the ring opened products have led to convenient syntheses of oxygen heterocycles,

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