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138900-65-9

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138900-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138900-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,0 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138900-65:
(8*1)+(7*3)+(6*8)+(5*9)+(4*0)+(3*0)+(2*6)+(1*5)=139
139 % 10 = 9
So 138900-65-9 is a valid CAS Registry Number.

138900-65-9Downstream Products

138900-65-9Relevant articles and documents

Synthesis of 3-Arylpyrroles and 3-Pyrrolylacetylenes by Palladium-Catalyzed Coupling Reactions

Alvarez, Alejandro,Guzman, Angel,Ruiz, Alicia,Velarde, Esperanza,Muchowski, Joseph M.

, p. 1653 - 1656 (2007/10/02)

Efficacious methods for the synthesis of 3-arylpyrroles or 3-pyrrolylacetylenes are described based on the palladium-catalyzed coupling of appropriate 1-(triisopropylsilyl)-3-substituted pyrroles with aryl halides or monosubstituted acetylenes and subsequ

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