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1072903-26-4

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1072903-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1072903-26-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,2,9,0 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1072903-26:
(9*1)+(8*0)+(7*7)+(6*2)+(5*9)+(4*0)+(3*3)+(2*2)+(1*6)=134
134 % 10 = 4
So 1072903-26-4 is a valid CAS Registry Number.

1072903-26-4Downstream Products

1072903-26-4Relevant articles and documents

Benzo[b]thiophen-3(2H)-one 1,1-dioxide-a versatile reagent in the synthesis of spiroheterocycles

Cekavicus, Brigita,Vigante, Brigita,Liepinsh, Edvards,Vilskersts, Reinis,Sobolev, Arkadij,Belyakov, Sergey,Plotniece, Aiva,Mekss, Kristaps,Duburs, Gunars

experimental part, p. 9947 - 9952 (2009/04/03)

New applications of benzo[b]thiophen-3(2H)-one 1,1-dioxide have been investigated. The synthesis of a new heterocyclic system 3H,2′H-spiro[benzo[b]thieno[3,2-b]pyridine-3,2′-benzo[b]thiophene] is described and a mechanism for the cyclisation is proposed.

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