Vat Red 41

Modify Date: 2026-07-08 04:36:54

Vat Red 41 Structure
Vat Red 41 structure
 Common Name Vat Red 41
CAS Number 522-75-8 Molecular Weight 296.36400
Density 1.544 g/cm3 Boiling Point 409.2ºC at 760 mmHg
Molecular Formula C16H8O2S2 Melting Point N/A
MSDS N/A Flash Point 177ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.544 g/cm3
Boiling Point 409.2ºC at 760 mmHg
Molecular Formula C16H8O2S2
Molecular Weight 296.36400
Flash Point 177ºC
Exact Mass 295.99700
PSA 84.74000
LogP 4.17520
Index of Refraction 1.797
InChIKey JOUDBUYBGJYFFP-NXVVXOECSA-N
SMILES O=C1C(=C2Sc3ccccc3C2=O)Sc2ccccc21

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DT4330000
CHEMICAL NAME :
(delta(sup 2,2'(3H,3'H))-Bibenzo(b)thiophene)-3,3'-dione
CAS REGISTRY NUMBER :
522-75-8
BEILSTEIN REFERENCE NO. :
0088277
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C16-H8-O2-S2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4170 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 50(8),91,1985 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M4429 No. of Facilities: 44 (estimated) No. of Industries: 2 No. of Occupations: 6 No. of Employees: 1582 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M4429 No. of Facilities: 8 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 330 (estimated) No. of Female Employees: 115 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Risk Phrases R36/37/38
Safety Phrases S26-S36
RTECS DT4330000
HS Code 3204159000

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  0

DownStream  1

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 3204159000

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Fluorescent Red Dye
Durindone Red BP
Helindon Red BB
EINECS 208-336-1
Isothioindigo
Thioindigo
Thioindigo Red S
Ciba Pink B
MFCD00191692
Thioindigo Red B
Durindone Red B
Tetra Pink B
Antinolo Red B

 Vat Red 41 | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the InChIKey of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: InChIKey of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is JOUDBUYBGJYFFP-NXVVXOECSA-N.
Q: What is the boiling point of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Boiling point of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 409.2ºC at 760 mmHg.
Q: What is the molecular formula of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Molecular formula of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is C16H8O2S2.
Q: What is the molecular weight of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Molecular weight of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 296.36400.
Q: What is the safety information for (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Safety information for (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one: S26-S36.
Q: What English synonyms does (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one have?
A: English synonyms of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one: Fluorescent Red Dye, Durindone Red BP, Helindon Red BB, EINECS 208-336-1, Isothioindigo, Thioindigo, Thioindigo Red S, Ciba Pink B, MFCD00191692, Thioindigo Red B, Durindone Red B, Tetra Pink B, Antinolo Red B.
Q: What is the polar surface area (PSA) of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Polar surface area (PSA) of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 84.74000.
Q: What are the downstream products of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: Related downstream products(CAS) of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one: 88-21-1.
Q: What is the English name of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: The English name of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one.
Q: What is the CAS number of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?
A: CAS number of (2Z)-2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 522-75-8.

 Vat Red 41factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Henan Tianfu Chemical Co., Ltd.
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Chemsrc provides Vat Red 41(CAS#:522-75-8) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of Vat Red 41 are included as well.>> amp version: Vat Red 41

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