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1182302-21-1

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1182302-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1182302-21-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,2,3,0 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1182302-21:
(9*1)+(8*1)+(7*8)+(6*2)+(5*3)+(4*0)+(3*2)+(2*2)+(1*1)=111
111 % 10 = 1
So 1182302-21-1 is a valid CAS Registry Number.

1182302-21-1Upstream product

1182302-21-1Relevant articles and documents

N,N,N′,N′-tetramethylchloroformamidinium chloride-mediated cyclizations of β-oxo amides: facile and divergent one-pot synthesis of substituted 2H-pyrans, 4H-pyrans and pyridin-2(1H)-ones

Wang, Yan,Xin, Xin,Liang, Yongjiu,Lin, Yingjie,Duan, Haifeng,Dong, Dewen

scheme or table, p. 2217 - 2223 (2009/12/27)

An efficient and divergent one-pot synthesis of substituted 2H-pyrans, 4H-pyrans and pyridin-2(1H)-ones from β-oxo amides based on the selection of the reaction conditions is reported. Mediated by N,N,N′,N′- tetramethylchloroformamidinium chloride, β-oxo

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