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(2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one

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Origem: China

Cas No: 522-75-8

Especificação: 99%Min

Quantidade de ordem min: 1 /kg

Capacidade de fornecimento: 100 mt/month

Tempo de espera: 7 dias para OEM, 3 dias para produtos prontos

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Descrição do produto

Property

CAS No.: 522-75-8 Formula: C16H8O2S2 Molecular Weight: 296.36400

Description

Thioindigo is an organosulfur compound that is used to dye polyester fabric. A synthetic dye, thioindigo is related to the plant-derived dye indigo, replacing two NH groups with two sulfur atoms.
Thioindigo is generated by the alkylation of the sulfur in thiosalicylic acid with chloroacetic acid. The resulting thioether cyclizes to 2-hydroxythianaphthene, which is easily converted to thioindigo. The related compound 4,7,4',7'-tetrachlorothioindigo, also a commercially important dye, can be prepared by chlorination of thioindigo.

Basic Info

Chemical Name	(2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one
Synonyms	Durindone Red BP; Durindone Red B; Antinolo Red B; Ciba Pink B; Helindon Red BB; Benzo[b]thiophen-3(2H)-one, 2-(3-oxobenzo[b]thien-2(3H)-ylidene)-; Isothioindigo; Thioindigo Red S; Fluorescent Red Dye; Tetra Pink B; Thioindigo; Thioindigo Red B;
CAS No.	522-75-8
Molecular Formula	C16H8O2S2
Molecular Weight	296.36400
PSA	84.74000
LogP	4.17520

Properties

Density	1.544 g/cm3
Boiling Point	409.2ºC at 760 mmHg
Flash Point	177ºC
Refractive Index	1.797

Safety Info

RTECS	DT4330000
Safety Statements	26-36
HS Code	3204159000
Risk Statements	R36/37/38

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Intraperitoneal	LD50 - Lethal dose, 50 percent kill	Rodent - rat	4170 mg/kg	1.Behavioral-somnolence (general depressed activity)

Downstream Product

2-aminobenzenesulfonic acid

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