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1340148-03-9

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1340148-03-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1340148-03-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,0,1,4 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1340148-03:
(9*1)+(8*3)+(7*4)+(6*0)+(5*1)+(4*4)+(3*8)+(2*0)+(1*3)=109
109 % 10 = 9
So 1340148-03-9 is a valid CAS Registry Number.

1340148-03-9Downstream Products

1340148-03-9Relevant articles and documents

Practical synthesis of a benzophenone-based NNRT inhibitor of HIV-1

Wang, Xiao-Jun,Zhang, Li,Sun, Xiufeng,Lee, Heewon,Krishnamurthy, Dhileepkumar,O'Meara, Jeff A.,Landry, Serge,Yoakim, Christiane,Simoneau, Bruno,Yee, Nathan K.,Senanayake, Chris H.

, p. 561 - 566 (2012/07/03)

A convergent synthesis of NNRTI 1 is described. The key step involves a direct coupling of acid chloride 4 with Grignard reagent 11 in the presence of bis[2-(N,N-dimethylamino)ethyl] ether that moderates the reactivity of the Grignard reagent to give benzophenone 7. An efficient 2-step process for the preparation of 2-fluoro-3-methyl-4-aminobenzoic acid (3) is also described.

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