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Vat and sulfur dyes

Vat Violet 2

Also known as Durindone Red 3B, PV-Violet R, Vat Violet 6RN

CAS 5462-29-3Formula C18H10Cl2O2S2Molar mass 393.32 g/molEC 226-750-0
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Vat Violet 2 chemical structure, C18H10Cl2O2S2, CAS 5462-29-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5462-29-3
Formula
C18H10Cl2O2S2
Molar mass
393.32 g/mol
EC number
226-750-0
HS code
320415
Category
Vat and sulfur dyes

What is Vat Violet 2?

Plain description, key identifiers and synonyms

Vat Violet 2 is a chemical substance with the molecular formula C18H10Cl2O2S2 and a molar mass of 393.32 g/mol. Its CAS registry number is 5462-29-3. The IUPAC name is (2E)-5-chloro-2-(5-chloro-7-methyl-3-oxo-1-benzothiophen-2-ylidene)-7-methyl-1-benzothiophen-3-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2E)-5-chloro-2-(5-chloro-7-methyl-3-oxo-1-benzothiophen-2-ylidene)-7-methyl-1-benzothiophen-3-one
CAS number
5462-29-3 CAS number cross-checked
EC number
226-750-0
Molecular formula
C18H10Cl2O2S2
UNII
ZVX9A7UOON
INCI name
CI 73385
InChIKey
HUGACAUYNJDGTB-ISLYRVAYSA-N
InChI
InChI=1S/C18H10Cl2O2S2/c1-7-3-9(19)5-11-13(21)17(23-15(7)11)18-14(22)12-6-10(20)4-8(2)16(12)24-18/h3-6H,1-2H3/b18-17+
Canonical SMILES
Cc1cc(Cl)cc2c1SC(=C1Sc3c(C)cc(Cl)cc3C1=O)C2=O
Isomeric SMILES
CC1=CC(=CC2=C1S/C(=C/3\C(=O)C4=C(S3)C(=CC(=C4)Cl)C)/C2=O)Cl

Synonyms

  • Durindone Red 3B
  • PV-Violet R
  • Vat Violet 6RN
  • Durindone Red 3BP
  • Ciba Red 3B
  • Ciba Red F3BN
  • Tina Red 3B
  • Hostavat Violet 6R
  • Sandothrene Red 3B
  • Vat Red Violet RH
  • Vat Printing Red Violet RH
  • Calcoloid Violet 6RD
  • Calcoloid Violet 6RP
  • Indanthrene Violet 6RB
  • Arlanone Red Violet RH
  • Hostavat Red Violet RH
  • Anthragen Red Violet RH
  • Hostaperm Red Violet RH
  • Sanyo Threne Violet IRH
  • Solanthrene Red Violet N
  • Tyrian Red Violet I-RH
  • Amanthrene Red Violet RH
  • Indanthren Red Violet RH
  • Mikethrene Red Violet RH
  • Indo Maroon MA-6608
Show all 37 synonyms
  • Indo Maroon MV-6601
  • Indanthrene Red Violet RH
  • Nihonthrene Red Violet RH
  • Palanthrene Red Violet RH
  • Romantrene Red Violet FRH
  • Durindone Printing Red 3B
  • C.I. 73385
  • Indanthrene Violet 6RB Extra
  • Indanthren Printing Red Violet RH
  • Segnale Red Violet RH
  • (delta2,2'(3H,3'H)-Bibenzo(b)thiophene)-3,3'-dione, 5,5'-dichloro-7,7'-dimethyl-
  • (delta2,2'(3H,3'H)-Bibenzo(b)thiophene)-3,3'-dione, 5,5'-dichloro-7,7'-dimethyl-(8CI)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
393.32 g/molcalc.
Exact mass
391.9499 Dacalc.
LogP (octanol/water)
6.1calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
24calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.11calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1C(=C2Sc3ccccc3C2=O)Sc2ccccc21

O=C1C(=C2Sc3ccccc3C2=O)Sc2ccccc21

4 rings, 20 atoms, the 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one ring system.

27 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Vat Violet 2 suppliers

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Vat Violet 2 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name CI 73385(colorant)

Functional uses

  • Dye

Cosmetic functions

  • Colorant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex IV, allowed colourant
    Name: CI 73385, Ref no: 101, Annex ref: IV/101

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Vat Violet 2 is traded under.

HS 3204.15Indicative HS code

Vat dyes (including those usable in that state as pigments) and preparations based thereon

World exports in 2024
$435M
−7.3% vs 2023, imports $357M
2019 to 2024
Top exporters
  1. China60.2%
  2. Singapore10.7%
  3. India * partner reported8.7%
Top importers
  1. India * partner reported17.1%
  2. Turkey10.7%
  3. Singapore10.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Vat Violet 2 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Vat Violet 2, based on the data on this page

What is Vat Violet 2?

Vat Violet 2 is a chemical substance with the molecular formula C18H10Cl2O2S2 and a molar mass of 393.32 g/mol. Its CAS registry number is 5462-29-3. The IUPAC name is (2E)-5-chloro-2-(5-chloro-7-methyl-3-oxo-1-benzothiophen-2-ylidene)-7-methyl-1-benzothiophen-3-one.

What is the CAS number of Vat Violet 2?

The CAS registry number of Vat Violet 2 is 5462-29-3.

What is the molecular formula and weight of Vat Violet 2?

The molecular formula of Vat Violet 2 is C18H10Cl2O2S2 and its molar mass is 393.32 g/mol.

What is Vat Violet 2 used for?

Use classes: Cosmetics.

Is Vat Violet 2 hazardous?

No GHS hazard classification for Vat Violet 2 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Vat Violet 2?

Vat Violet 2 is usually classified under HS code 320415 (Vat dyes (including those usable in that state as pigments) and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Vat Violet 2?

Post a free request on CompoundList and suppliers of Vat Violet 2 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Vat Violet 2?

Suppliers quote Vat Violet 2 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Vat Violet 2

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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