1808-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1808-49-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,0 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1808-49:
(6*1)+(5*8)+(4*0)+(3*8)+(2*4)+(1*9)=87
87 % 10 = 7
So 1808-49-7 is a valid CAS Registry Number.
1808-49-7Relevant academic research and scientific papers
Reaction of antipyrine with Schiff bases
Kozlov,Basalaeva
, p. 302 - 306 (2008/02/08)
New dihydropyrazolone derivatives were prepared by condensation of antipyrine with substituted arylmethyleneanilines or arylmethylene-2- naphthylamines. Pleiades Publishing, Inc., 2006.