57074-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57074-24-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,7 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57074-24:
(7*5)+(6*7)+(5*0)+(4*7)+(3*4)+(2*2)+(1*4)=125
125 % 10 = 5
So 57074-24-5 is a valid CAS Registry Number.
57074-24-5Relevant academic research and scientific papers
Synthesis of New Lichen Xanthones
Elix, John A.,Crook, Caroline E.,Jiang, Hui,Zhi-ning, Zhu
, p. 845 - 855 (2007/10/02)
The unambignous total synthesis of seventheen chlorine-containing derivatives of norlichexanthone (1,3,6-trihydroxy-8-methyl-9H-xanthen-9-one) has been achieved by using the condensation of an appropriately substituted methyl or ethy orsellinate and phlor