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1220498-60-1

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1220498-60-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1220498-60-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,4,9 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1220498-60:
(9*1)+(8*2)+(7*2)+(6*0)+(5*4)+(4*9)+(3*8)+(2*6)+(1*0)=131
131 % 10 = 1
So 1220498-60-1 is a valid CAS Registry Number.

1220498-60-1Downstream Products

1220498-60-1Relevant articles and documents

Enantioselective synthesis of (+)-estrone exploiting a hydrogen bond-promoted Diels?Alder reaction

Weimar, Marko,Duerner, Gerd,Bats, Jan W.,Goebel, Michael W.

supporting information; experimental part, p. 2718 - 2721 (2010/07/17)

Starting from Danes diene and methylcyclopentenedione, (+)-estrone is synthesized along the Quinkert?Dane route in 24% total yield. The key step is an enantioselective Diels?Alder reaction promoted by an amidinium catalyst as efficiently as by a traditional Ti-TADDOLate Lewis acid.

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