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309748-80-9

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309748-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309748-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,7,4 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 309748-80:
(8*3)+(7*0)+(6*9)+(5*7)+(4*4)+(3*8)+(2*8)+(1*0)=169
169 % 10 = 9
So 309748-80-9 is a valid CAS Registry Number.

309748-80-9Downstream Products

309748-80-9Relevant articles and documents

Iridium-catalyzed enantioselective hydrogenation of unsaturated heterocyclic acids

Song, Song,Zhu, Shou-Fei,Pu, Liu-Yang,Zhou, Qi-Lin

, p. 6072 - 6075 (2013/07/05)

Spiral binding: A highly enantioselective hydrogenation of unsaturated heterocyclic acids has been developed by using chiral iridium/spirophosphino oxazoline catalysts (see scheme; BArF-=tetrakis[3,5- bis(trifluoromethyl)phenyl]borate, Boc=tert-butoxycarbonyl). This reaction provided an efficient method for the preparation of optically active heterocyclic acids with excellent enantioselectivities. Copyright

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