I think Azo dyes contain double and triple bonds in their stuctures

Can u give a few names?

Check this link: http://www.food-info.net/uk/colour/azo.htm

Azo dyes eg: Acid Black 10B

Hi Hasna....

In my openion Azodyes comes under this complex dye category by having double bonds (one is sigma bond and another is pi bond).

Azo dyes are dyes with -N=N- azo structure as a chromophore.

List of commercial azo dyes:

Red RB

Remazol Red

Disperse Blue 165

Remazol Blue

Direct Red 81

Remazol Black

Pigment Yellow 14

Remazol violet

Remazol orange

Golden yellow

Acid Black 1

Basic Red 18

Acid Red 33

Red 40

Acid orange 7

Acid red 88

Alcian yellow

Alizarine Yellow R

Allura Red AC

Amaranth (dye)

Amido black 10B

Aniline Yellow

Azo compound

Azo violet

Azorubine

Biebrich scarlet

Bismarck brown R

Bismarck brown Y

Black 7984

Brilliant Black BN

Brown FK

Brown HT

Chrysoine resorcinol

Citrus Red 2

Congo red

D&C Red 33

Direct Blue 1

Disperse Orange 1

Eriochrome Black T

Evans blue

Fast Yellow AB

Hydroxynaphthol blue

Janus Green B

Lithol Rubine BK

Methyl orange

Methyl red

Methyl yellow

Mordant Brown 33

Mordant red 19

Oil Red O

Oil Yellow DE

Orange B

Orange G

Orange GGN

Para Red

Ponceau 2R

Ponceau 4R

Ponceau 6R

Ponceau S

Prontosil

Red 2G

Scarlet GN

Solvent Red 164

Solvent Red 26

Solvent Yellow 124

Sudan Black B

Sudan I

Sudan II

Sudan III

Sudan IV

Sudan Red 7B

Sudan Red G

Sudan Yellow 3G

Sunset Yellow FCF

Tartrazine

Tropaeolin OO

Trypan blue

Yellow 2G

Also,

http://en.wikipedia.org/wiki/Category:Azo_dyes

Thx a lot

@chandrasekhar ..

Ya i think Mr. chandrasekhar given a huge and impressive list for a wide varieties of dyes containing single and double bonds.

Hi hasana, chandra given suitable answer for your question.

What about reactive dyes used in textile industries?