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5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one

5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one structure

CAS No.: 3687-67-0

Chemical Name:: 5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one

Synonyms: C.I.73670;Vat Black 1;C.I. Vat black 1;Helanthrene Black BL;C.I.Vat Black 1:C.I.73670;Paradone Printing Black TLSF;Paradone Printing Black BLSF;5-bromo-2-(9-chloro-3-oxonaphtho(1,2-b)thien-2(3h)-ylidene)-3-indolinon;(2E)-5-bromo-2-(9-chloro-3-oxobenzo[g][1]benzothiol-2-ylidene)-1H-indol-3-one;5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one

CBNumber:: CB6926692

Molecular Formula:: C20H9BrClNO2S

Molecular Weight:: 442.71

MDL Number:: MFCD01718527

MOL File:: 3687-67-0.mol

Last updated:2025-12-31 14:38:37

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5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one Properties

Boiling point	559.8±50.0 °C(Predicted)
Density	1.6215 (estimate)
pka	-5.99±0.20(Predicted)
EPA Substance Registry System	3H-Indol-3-one, 5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro- (3687-67-0)

SAFETY

Risk and Safety Statements

TSCA	TSCA listed

5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one Chemical Properties, Uses, Production

Preparation

9-Chloronaphtho[1,2-b]thiophen-3(2H)-one with 5-Bromo-2-chloro-3H-indol-3-onecondensation.

Properties and Applications

blue light grey to blue black. Black powder. Not soluble in organic solvent. In concentrated sulfuric acid for olive, dilution after black precipitation; In concentrated nitric acid for black. Alkaline reduction leuco for gold; Acid reduction leuco for pale yellow. Mainly used for cotton fabric printing, also can be used for silk and wool dyeing. When dyed cotton commonly used in dyeing light color; When printing is suitable for direct printing, dyeing of wool when good affinity.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Fading	Stain
ISO	4-5	5	6-7	4-5	4	4-5	5
AATCC	4	5	6		4

5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one Preparation Products And Raw materials

Raw materials

5-bromo-2-chloro-3H-indol-3-one 9-chloronaphtho[1,2-b]thiophen-3(2H)-one

Preparation Products

disodium 5-bromo-2-[9-chloro-3-(sulphonatooxy)naphtho[1,2-b]thien-2-yl]-1H-indol-3-yl sulphate

5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one Suppliers

Global Suppliers ( 8)

Supplier	Tel	Email	Country	ProdList	Advantage
Shaanxi Dideu Medichem Co. Ltd	81148925 17391631969	1023@dideu.com	China	9999	58
DAYANG CHEM (HANGZHOU) CO.,LTD	+86-88938639 +86-17705817739	info@dycnchem.com	China	53589	58

Supplier	Advantage
Shaanxi Dideu Medichem Co. Ltd	58
DAYANG CHEM (HANGZHOU) CO.,LTD	58

3687-67-0 (5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one) Related Search:

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5-bromo-2-(9-chloro-3-oxonaphtho[1,2-b]thien-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one Vat Black 1 (2E)-5-bromo-2-(9-chloro-3-oxobenzo[g][1]benzothiol-2-ylidene)-1H-indol-3-one 5-bromo-2-(9-chloro-3-oxonaphtho(1,2-b)thien-2(3h)-ylidene)-3-indolinon C.I. Vat black 1 2-(5-Bromo-3-oxo-2,3-dihydro-1H-indol-2-ylidene)-9-chloro-2,3-dihydronaphtho[1,2-b]thiophen-3-one C.I.73670 Helanthrene Black BL Paradone Printing Black BLSF Paradone Printing Black TLSF 3H-Indol-3-one, 5-bromo-2-(9-chloro-3-oxonaphtho[ 1,2-b]thien-2(3H)-ylidene)-1,2-dihydro- C.I.Vat Black 1:C.I.73670 3687-67-0 C20H9BrClNO2S Organics