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4171-11-3

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4171-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4171-11-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,7 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4171-11:
(6*4)+(5*1)+(4*7)+(3*1)+(2*1)+(1*1)=63
63 % 10 = 3
So 4171-11-3 is a valid CAS Registry Number.
InChI:InChI=1/C15H11NO3/c17-13-15(19-14(18)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H,16,17,18)

4171-11-3Relevant articles and documents

A facile one-pot synthesis of 3-unsubstituted-2,4-oxazolidinediones via in situ generation of carbamates from α-hydroxyesters using trichloroacetyl isocyanate

Li, Yue H.,Zhang, Li,Tseng, Pei-San,Zhang, Yongliang,Jin, Yu,Shen, Jingkang,Jin, Jian

scheme or table, p. 790 - 792 (2009/05/07)

A convenient, high yield one-pot methodology for the synthesis of pharmaceutically interesting 3-unsubstituted-2,4-oxazolidinediones from α-hydroxyesters is described. A primary carbamate was generated in situ from the corresponding α-hydroxyester and tri

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