"N-[2-(3-methyl-3H-benzothiazol-2-ylidene)-ethylidene]-4-nitro-aniline" is a complex organic compound with the molecular formula C18H14N4O2S. It features a benzothiazole ring, which is a heterocyclic aromatic ring system consisting of a benzene ring fused to a thiazole ring. The compound has a methyl group attached to the benzothiazole, and an ethylidene group connects this ring to an aniline moiety, which is an amino group (-NH2) attached to a benzene ring. The aniline part of the molecule is further substituted with a nitro group (-NO2) at the para position, which imparts specific chemical properties. N-[2-(3-methyl-3H-benzothiazol-2-ylidene)-ethylidene]-4-nitro-aniline is known for its potential applications in the field of chemistry, particularly in the synthesis of dyes and pigments, due to its ability to absorb light in the visible region, which is a characteristic of chromophores.
The CAS Registry Mumber 1160-42-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,6 and 0 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 1160-42: (6*1)+(5*1)+(4*6)+(3*0)+(2*4)+(1*2)=45 45 % 10 = 5 So 1160-42-5 is a valid CAS Registry Number.