1313858-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1313858-22-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,8,5 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1313858-22:
(9*1)+(8*3)+(7*1)+(6*3)+(5*8)+(4*5)+(3*8)+(2*2)+(1*2)=148
148 % 10 = 8
So 1313858-22-8 is a valid CAS Registry Number.
1313858-22-8Relevant articles and documents
Formylation of 5-hydroxybenzofuran derivatives and synthesis of furo-[3,2-f]coumarins based on them
Frasinyuk,Bondarenko,Shablykina,Khilya
, p. 1155 - 1163 (2012/03/26)
The formylation of esters of 5-hydroxy-1-benzofuran-3-carboxylic acid has been studied. The interaction of the synthesized aldehydes with esters of β-keto acids and hetarylacetonitriles gave furo[3,2-f]coumarin-1-carboxylic acids derivatives.
