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121441-79-0

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121441-79-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121441-79-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,4 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121441-79:
(8*1)+(7*2)+(6*1)+(5*4)+(4*4)+(3*1)+(2*7)+(1*9)=90
90 % 10 = 0
So 121441-79-0 is a valid CAS Registry Number.

121441-79-0Relevant articles and documents

Novel approach to the ansamycin antibiotics macbecin I and herbimycin A. A formal total synthesis of (+)-macbecin I

Martin, Stephen F.,Dodge, Jeffrey A.,Burgess, Laurence E.,Limberakis, Chris,Hartmann, Michael

, p. 3229 - 3246 (2007/10/03)

The asymmetric syntheses of 25 and 29, which constitutes the C(3)-C(15) segment of the stereochemically complex ansa chain of (+)-macbecin I (1) and herbimycin A (2), respectively, have been achieved. The approach features the furan-hydropyranone transfor

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