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1280728-92-8

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1280728-92-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280728-92-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,7,2 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1280728-92:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*2)+(3*8)+(2*9)+(1*2)=168
168 % 10 = 8
So 1280728-92-8 is a valid CAS Registry Number.

1280728-92-8Downstream Products

1280728-92-8Relevant articles and documents

H3PW12O40-catalysed alkylation of arenes and diveratrylmethanes: Convenient routes to triarylmethanes and to symmetrical and unsymmetrical 9,10-diaryl-2,3,6,7-tetramethoxyanthracenes

Mohammadpoor-Baltork, Iraj,Moghadam, Majid,Tangestaninejad, Shahram,Mirkhani, Valiollah,Mohammadiannejad-Abbasabadi, Kazem,Khavasi, Hamid R.

, p. 1357 - 1366 (2011/04/17)

An efficient method for the synthesis of triarylmethanes and difurylarylmethanes through solventless reactions between aldehydes and arenes in the presence of H3PW12O40 as a reusable catalyst under thermal and microwave irradiation conditions has been developed. H3PW12O40-catalysed one-pot consecutive Friedel-Crafts reactions between veratrole and aldehydes were also applied as a convenient protocol for the preparation of symmetrical 9,10-diaryl-2,3,6,7- tetramethoxyanthracenes.

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