16698-16-1 Usage
General Description
Disodium 4-(acetylamino)-5-hydroxynaphthalene-2,7-disulphonate, also known as Acid Orange 7, is a synthetic organic compound commonly used as a textile dye and in laboratory experiments. It belongs to the class of disulfonated naphthols and is commonly used for dyeing cotton fabric. This chemical is soluble in water and has a characteristic orange to red color. It is also used in the pharmaceutical and food industries as a coloring dye. However,
Check Digit Verification of cas no
The CAS Registry Mumber 16698-16-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,9 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 16698-16:
(7*1)+(6*6)+(5*6)+(4*9)+(3*8)+(2*1)+(1*6)=141
141 % 10 = 1
So 16698-16-1 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO8S2.2Na/c1-6(14)13-10-4-8(22(16,17)18)2-7-3-9(23(19,20)21)5-11(15)12(7)10;;/h2-5,15H,1H3,(H,13,14)(H,16,17,18)(H,19,20,21);;/q;2*+1/p-2