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2,4,6,2'-Tetramethyl-benzhydrol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21945-77-7

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21945-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21945-77-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,4 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21945-77:
(7*2)+(6*1)+(5*9)+(4*4)+(3*5)+(2*7)+(1*7)=117
117 % 10 = 7
So 21945-77-7 is a valid CAS Registry Number.

21945-77-7Relevant academic research and scientific papers

Asymmetric reduction of ortho-multisubstituted benzophenones catalyzed by diamine-Zn-diol complexes

Ushio, Hiroyuki,Mikami, Koichi

, p. 2903 - 2906 (2007/10/03)

The asymmetric reduction of benzophenones multisubstituted at the ortho-positions was achieved via hydrosilylation catalyzed by in situ generated chiral diamine-Zn-diol complexes under mild conditions, wherein polymethylhydrosiloxane (PMHS) served as a sa

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