CompoundList
Sign in
Heterocyclic building blocks

4-Hydroxybenzothiazole

Also known as 4-Benzothiazolol, Benzo[d]thiazol-4-ol, 1,3-benzothiazol-4-ol

CAS 7405-23-4Formula C7H5NOSMolar mass 151.19 g/mol
2 suppliers listed
Get quotes Compare 2 suppliers
4-Hydroxybenzothiazole chemical structure, C7H5NOS, CAS 7405-23-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7405-23-4
Formula
C7H5NOS
Molar mass
151.19 g/mol
HS code
293420
Category
Heterocyclic building blocks

What is 4-Hydroxybenzothiazole?

Plain description, key identifiers and synonyms

4-Hydroxybenzothiazole is a chemical substance with the molecular formula C7H5NOS and a molar mass of 151.19 g/mol. Its CAS registry number is 7405-23-4. The IUPAC name is 1,3-benzothiazol-4-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,3-benzothiazol-4-ol
CAS number
7405-23-4 CAS number cross-checked
Molecular formula
C7H5NOS
UNII
9P649L66JX
MDL number
MFCD11046398
InChIKey
NZFKDDMHHUEVPI-UHFFFAOYSA-N
InChI
InChI=1S/C7H5NOS/c9-5-2-1-3-6-7(5)8-4-10-6/h1-4,9H
SMILES (canonical and isomeric)
C1=CC(=C2C(=C1)SC=N2)O

Synonyms

  • 4-Benzothiazolol
  • Benzo[d]thiazol-4-ol
  • 1,3-benzothiazol-4-ol
  • benzothiazol-4-ol
  • 4-hydroxybenzthiazol
  • 4-Hydroxy-benzothiazole
  • 4hydroxy benzothiazo
  • 4hydroxy benzothiazole
  • 4-hydroxy benzothiazole
  • benzothiazole, 4-hydroxy-
  • 4-Hydroxybenzothiazole, Benzo[d]thiazol-4-ol

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
151.19 g/molcalc.
Exact mass
151.0092 Dacalc.
LogP (octanol/water)
2calc.
Topological polar surface area
33.12 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
10calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)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, c1ccc2scnc2c1

c1ccc2scnc2c1

2 rings, 9 atoms, the Benzothiazole ring system.

6,032 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.

4-Hydroxybenzothiazole suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 2 suppliers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

2 suppliers in 2 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

4-Hydroxybenzothiazole price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 4-Hydroxybenzothiazole is traded under.

HS 2934.20Indicative HS code

Compounds containing in the structure a benzothiazole ring-system (whether or not…

World exports in 2024
$662M
+4.3% vs 2023, imports $630M
2019 to 2024
Top exporters
  1. China62.9%
  2. Belgium14.6%
  3. United States5.4%
Top importers
  1. India * partner reported18.5%
  2. United States18.1%
  3. Brazil6.7%

* Partner reported figures, a lower bound.

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

The HS code shown for 4-Hydroxybenzothiazole is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Hydroxybenzothiazole, based on the data on this page

What is 4-Hydroxybenzothiazole?

4-Hydroxybenzothiazole is a chemical substance with the molecular formula C7H5NOS and a molar mass of 151.19 g/mol. Its CAS registry number is 7405-23-4. The IUPAC name is 1,3-benzothiazol-4-ol.

What is the CAS number of 4-Hydroxybenzothiazole?

The CAS registry number of 4-Hydroxybenzothiazole is 7405-23-4.

What is the molecular formula and weight of 4-Hydroxybenzothiazole?

The molecular formula of 4-Hydroxybenzothiazole is C7H5NOS and its molar mass is 151.19 g/mol.

What is 4-Hydroxybenzothiazole used for?

Known uses and roles of 4-Hydroxybenzothiazole include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 4-Hydroxybenzothiazole hazardous?

No GHS hazard classification for 4-Hydroxybenzothiazole 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 4-Hydroxybenzothiazole?

4-Hydroxybenzothiazole is usually classified under HS code 293420 (Compounds containing in the structure a benzothiazole ring-system (whether or not…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Hydroxybenzothiazole?

CompoundList lists 2 suppliers of 4-Hydroxybenzothiazole in China and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 4-Hydroxybenzothiazole in India?

1 supplier in India list 4-Hydroxybenzothiazole on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 4-Hydroxybenzothiazole?

Suppliers quote 4-Hydroxybenzothiazole 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 4-Hydroxybenzothiazole

Get quotes for 4-Hydroxybenzothiazole

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell 4-Hydroxybenzothiazole
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of 4-Hydroxybenzothiazole with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/4-hydroxybenzothiazole-7405-23-4" title="4-Hydroxybenzothiazole structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Heterocyclic building blocks or HS code 293420

2 suppliers
Free quotes, contact stays private
Get quotes