Dye|Dye intermediates|Fluorescent Brightener|pigment dye

3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-

Name: 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-

CA Name: 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-

Molecular Structure:

3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-,3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-,CAS 482-89-3,262.26,C16H10N2O2

Molecular Formula:C₁₆H₁₀N₂O₂

Molecular Weight: 262.26

CAS Registry Number: 482-89-3

List of synthetic dyes :

C.I.Vat Blue 35

C.I.Vat Blue 48

C.I.Vat Blue 5

C.I.Food Blue 1

C.I.Food Blue 1:1

Acid Blue 74

C.I.Pigment Blue 63

No related posts.

This entry was posted on Wednesday, June 26th, 2013 at 5:17 AM and is filed under Dye intermediates. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

8 Responses to “3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-”

1. Food Blue 1 on August 9th, 2013 at 7:43 AM

   […] Manufacturing Methods : with strong sulfuric acid or trace fuming sulfuric acid sulphonated 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-. […]

2. Food Blue 1:1 on August 9th, 2013 at 7:46 AM

   […] Methods : with strong sulfuric acid or low concentration fuming sulfuric acid sulphonated 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-, and then into aluminum salt deposit […]

3. Vat Blue 2 on October 23rd, 2013 at 6:37 AM

   […] Methods : (a) in the Chloroacetic acid or methyl bromide in sulfate Janson 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- (namely VAT dye C.I. 73025) [FIAT 764 and 1313], or in the cold sulfuric acid in 4,4 ‘- […]

4. Vat Blue 5 on October 23rd, 2013 at 6:54 AM

   […] : (a) and Acetic anhydride in the presence of Sodium acetate trihydrate in Acetic acid glacial will 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-   tetrabromide (FIAT764); (b) in the boiling Nitrobenzene with Bromine will […]

5. Vat Blue 34 on October 24th, 2013 at 4:49 AM

   […] Methods :  (a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in a sulphuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (FIAT 764 and […]

6. Vat Blue 35 on October 24th, 2013 at 4:50 AM

   […] Methods : (a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in sulfuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid in two (FIAT 764 and […]

7. Vat Blue 48 on October 24th, 2013 at 5:17 AM

   […] Methods :  (a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in chlorosulfonic acid bromide, (b) Indigo under pressure to use too much bromide bromide (With or […]

8. Pigment Blue 63 on December 4th, 2013 at 1:47 AM

   […] Methods :3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- with concentrated SULFURIC ACID or trace SULFURIC ACID sulphonate, then into aluminum […]

Leave a Reply