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304434-29-5

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304434-29-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 304434-29-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,3 and 4 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 304434-29:
(8*3)+(7*0)+(6*4)+(5*4)+(4*3)+(3*4)+(2*2)+(1*9)=105
105 % 10 = 5
So 304434-29-5 is a valid CAS Registry Number.

304434-29-5Downstream Products

304434-29-5Relevant articles and documents

Synthesis of the bisbenzannelated spiroketal core of the γ-rubromycins. The use of a novel Nef-type reaction mediated by Pearlman's catalyst

Capecchi, Tanya,De Koning, Charles B.,Michael, Joseph P.

, p. 2681 - 2688 (2007/10/03)

The synthesis of the bisbenzannelated spiroketal core 6 of γ-rubromycin 1 from the substituted nitrostyrene 20 was achieved by using a novel Nef-type reaction mediated by Pearlman's catalyst. The precursor 28 was synthesised from readily prepared starting materials using Henry condensation chemistry. The product 6 was found to exist in two conformations in solution as shown by NMR spectroscopy.

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