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549546-05-6

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549546-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 549546-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,4 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 549546-05:
(8*5)+(7*4)+(6*9)+(5*5)+(4*4)+(3*6)+(2*0)+(1*5)=186
186 % 10 = 6
So 549546-05-6 is a valid CAS Registry Number.

549546-05-6Relevant articles and documents

An intramolecular [2 + 2] photocycloaddition approach to conformationally restricted bis-pyrrolidines

Fort, Diego A.,Woltering, Thomas J.,Alker, André M.,Bach, Thorsten

supporting information, p. 7152 - 7161 (2014/08/18)

With N-Boc-protected 4-(allylaminomethyl)-2(5H)furanones as starting materials, a photochemical approach is presented to give 3,9-diazatricyclo[5.3. 0.01,5]decanes as conformationally restricted bis-pyrrolidines. The products are orthogonally protected at the two nitrogen atoms and exhibit, depending on the substitution pattern at positions C5, C6, and C7, latent C 2 symmetry. When the furanones had a phenyl group at the 3-position (X3), alternative photochemical pathways were observed.

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