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131002-02-3

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131002-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131002-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,0 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131002-02:
(8*1)+(7*3)+(6*1)+(5*0)+(4*0)+(3*2)+(2*0)+(1*2)=43
43 % 10 = 3
So 131002-02-3 is a valid CAS Registry Number.

131002-02-3Upstream product

131002-02-3Relevant articles and documents

Acid-promoted palladium(II)-catalyzed ortho-halogenation of primary benzamides: En route to halo-arenes

Jaiswal, Yogesh,Kumar, Amit

, (2019)

Br?nsted acid-promoted palladium(II)-catalyzed regioselective installation of halogens (Br, Cl, and I) to the aromatic ring of benzamide derivatives has been achieved using primary amides. A wide variety of benzamides were compatible under established conditions to afford the halogenated products without installing any external auxiliary. Mild reaction conditions, use of primary amide as a directing group, external additive-free conditions, and gram-scale reaction are some appealing features of this protocol. Detailed experimental results revealed that Br?nsted acid plays a critical role in this transformation.

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