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2003-05-6

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2003-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2003-05-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,0 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2003-05:
(6*2)+(5*0)+(4*0)+(3*3)+(2*0)+(1*5)=26
26 % 10 = 6
So 2003-05-6 is a valid CAS Registry Number.

2003-05-6Downstream Products

2003-05-6Relevant articles and documents

Addition of lithium carbenoids to isocyanates: A direct access to synthetically useful N-substituted 2-haloacetamides

Pace, Vittorio,Castoldi, Laura,Holzer, Wolfgang

supporting information, p. 8383 - 8385 (2013/09/23)

The addition of lithium carbenoids to isocyanates provides a versatile access to N-substituted 2-haloacetamides: the reaction tolerates the presence of variously functionalized substituents on the nitrogen atom, including sterically demanding ones and reactive halogens. No erosion of the enantiopurity was observed in the case of optically active isocyanates. One of the substrates prepared has been employed in Charette's type chemoselective addition of a Grignard reagent to access an α-chloroketone.

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