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803733-15-5

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803733-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 803733-15-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,3,7,3 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 803733-15:
(8*8)+(7*0)+(6*3)+(5*7)+(4*3)+(3*3)+(2*1)+(1*5)=145
145 % 10 = 5
So 803733-15-5 is a valid CAS Registry Number.

803733-15-5Downstream Products

803733-15-5Relevant articles and documents

Coupling-isomerization-Stetter and coupling-isomerization-Stetter-Paal- Knorr sequences - A multicomponent approach to furans and pyrroles

Braun, Roland U.,Mueller, Thomas J. J.

, p. 2391 - 2406 (2007/10/03)

2,3,5-Trisubstituted furans 6 and 1,2,3,5-tetrasubstituted pyrroles 8 can be synthesized in good yields in a one-pot three-step three- or four-component process by a coupling-isomerization-Stetter-Paal-Knorr sequence of an electron-poor (hetero)aryl halid

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