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1234895-90-9

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1234895-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1234895-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,8,9 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1234895-90:
(9*1)+(8*2)+(7*3)+(6*4)+(5*8)+(4*9)+(3*5)+(2*9)+(1*0)=179
179 % 10 = 9
So 1234895-90-9 is a valid CAS Registry Number.

1234895-90-9Downstream Products

1234895-90-9Relevant articles and documents

Iodine-promoted synthesis of acylindolizine derivatives from acetylenecarboxylates and pyridinium, isoquinolinium, or quinolinium ylides

Liu, Juanjuan,Yan, Peiyun,Li, Yan,Zhou, Zhengquan,Ye, Weijian,Yao, Juan,Wang, Cunde

, p. 617 - 625 (2014/04/03)

An iodine-promoted synthesis of acylindolizinecarboxylates via 1,3-dipolar cycloaddition of nitrogen ylides with acetylenecarboxylates and subsequent aromatization for the generation of a wide range of structurally interesting, pharmacologically and photoelectrically significant compounds is reported. Only readily available materials, mild conditions, and operationally trivial reaction protocols were required. Graphical abstract: [Figure not available: see fulltext.]

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