495-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 495-98-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 495-98:
(5*4)+(4*9)+(3*5)+(2*9)+(1*8)=97
97 % 10 = 7
So 495-98-7 is a valid CAS Registry Number.
InChI:InChI=1/C12H20N2O/c1-8(2)5-10-7-13-11(6-9(3)4)12(15)14-10/h7-9H,5-6H2,1-4H3,(H,14,15)
495-98-7Relevant articles and documents
SYNTHESIS OF HALOHYDROXYPYRAZINES AND THEIR SYNTHETIC UTILITY
Aoyagi, Yutaka,Fujiwara, Takako,Ohta, Akihiro
, p. 2407 - 2415 (2007/10/02)
Treatment of hydroxypyrazines with N-halosuccinimide (NXS; X=Cl, Br,I) in N,N-dimethylformamide (DMF) at room temperature afforded halohydroxypyrazines in good yields.Their synthetic utility was examined.