2159-46-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2159-46-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 2159-46:
(6*2)+(5*1)+(4*5)+(3*9)+(2*4)+(1*6)=78
78 % 10 = 8
So 2159-46-8 is a valid CAS Registry Number.
2159-46-8Relevant articles and documents
4- and 5-nitro-2-benzoylbenzoic acid
Martin, Samuel B.,Valente, Edward J.
, p. 203 - 207 (2007/10/03)
The structures of two isomeric nitro 2-benzoylbenzoic acids have been determined. 4-Nitro-2-benzoylbenzoic acid, C14H9NO5, monoclinic, P21/c, a = 9.455(5), b = 6.632(2), c = 21.333(7)A, β = 107.96(3)°, Z = 4, V