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1337985-48-4

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1337985-48-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1337985-48-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,7,9,8 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1337985-48:
(9*1)+(8*3)+(7*3)+(6*7)+(5*9)+(4*8)+(3*5)+(2*4)+(1*8)=204
204 % 10 = 4
So 1337985-48-4 is a valid CAS Registry Number.

1337985-48-4Relevant articles and documents

Enantioselective synthesis of chelidonine, a B/C-cis-11- hydroxyhexahydrobenzo[c]phenanthridine alkaloid

Ito, Miki,Konno, Fujiko,Kumamoto, Takuya,Suzuki, Noriyuki,Kawahata, Masatoshi,Yamaguchi, Kentaro,Ishikawa, Tsutomu

, p. 8041 - 8049 (2011/11/12)

Both enantiomers of chelidonine, a B/C-cis-11-hydroxyhexahydrobenzo[c] phenanthridine alkaloid, were synthesized by manipulation of the B/C-dehydro ring juncture of benzo[c]phenanthridine skeleton using Sharpless asymmetric dihydroxylation and stereospecific catalytic hydrogenation after introduction of oxygen functions on the C ring as key reaction steps for the construction of stereogenic centers.

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