2158-91-0 Usage
Chemical Properties
Off-White Crystalline Solid
Check Digit Verification of cas no
The CAS Registry Mumber 2158-91-0 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 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2158-91:
(6*2)+(5*1)+(4*5)+(3*8)+(2*9)+(1*1)=80
80 % 10 = 0
So 2158-91-0 is a valid CAS Registry Number.
2158-91-0Relevant articles and documents
4- and 5-nitro-2-benzoylbenzoic acid
Martin, Samuel B.,Valente, Edward J.
, p. 203 - 207 (1998)
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