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Heterocyclic building blocks

Ska-31

Also known as benzo[e][1,3]benzothiazol-2-amine, benzo(e)(1,3)benzothiazol-2-amine, Naphtho[1,2-d]thiazol-2-amine

CAS 40172-65-4Formula C11H8N2SMolar mass 200.27 g/molEC 254-822-1
GHS signal word: Warning. Pictograms: Harmful or irritant 10 suppliers listed
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Ska-31 chemical structure, C11H8N2S, CAS 40172-65-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
40172-65-4
Formula
C11H8N2S
Molar mass
200.27 g/mol
EC number
254-822-1
HS code
293499
Category
Heterocyclic building blocks

What is Ska-31?

Plain description, key identifiers and synonyms

SKA-31 is a naphthothiazole. It has a role as an antihypertensive agent and a potassium channel modulator.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
benzo[e][1,3]benzothiazol-2-amine
CAS number
40172-65-4 CAS number cross-checkedOther or deprecated CAS: 111886-81-8
EC number
254-822-1
Molecular formula
C11H8N2S
UNII
SW12CAS9T7
MDL number
MFCD00051329
InChIKey
FECQXVPRUCCUIL-UHFFFAOYSA-N
InChI
InChI=1S/C11H8N2S/c12-11-13-10-8-4-2-1-3-7(8)5-6-9(10)14-11/h1-6H,(H2,12,13)
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C=CC3=C2N=C(S3)N

Synonyms

  • benzo[e][1,3]benzothiazol-2-amine
  • benzo(e)(1,3)benzothiazol-2-amine
  • Naphtho[1,2-d]thiazol-2-amine
  • 2-Amino-beta-naphthothiazole
  • Naphtho[1,2-d]thiazol-2-ylamine
  • SKA 31
  • 2-Aminonaphthiazole
  • naphtho[1,2-d][1,3]thiazol-2-amine
  • 2-Aminonaphtho(1,2-d)thiazole
  • 2-Aminonaphtho[1,2-d]thiazole
  • Naphtho(1,2-d)thiazol-2-amine
  • benzo[e]benzothiazole-2-ylamine
  • thiazol-2-amine, 4
  • 2-Aminonaphtho(1,2)thiazole
  • Naphtho[12-d]thiazol-2-ylamine
  • naphtho[1,2-d]thiazole-2-amine
  • SKA-31?
  • 2-Amino-naphtho[1,2-d]thiazole
  • SKA-31, >=98% (HPLC)
  • alpha-naphthothiazole, 1-amino-
  • Naphtho(1,2-d)thiazole, 2-amino-
  • Naphtho[1,2-d][1,3]thiazol-2-ylamine #
  • Naphtho[1,2-d][1,3]thiazol-2(1H)-imine
  • 5-thia-3-azatricyclo[7.4.0.0(2),]trideca-1,3,6,8,10,12-hexaen-4-ylamine

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
200.27 g/molcalc.
Exact mass
200.0408 Dacalc.
LogP (octanol/water)
3.03calc.
Topological polar surface area
38.91 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
14calc.
Rings
3calc.
Aromatic rings
3calc.
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, c1ccc2c(c1)ccc1scnc12

c1ccc2c(c1)ccc1scnc12

3 rings, 13 atoms, the Naphtho(1,2-d)(1,3)thiazole ring system.

48 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Ska-31 suppliers

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

All 10 suppliers
10 of 10 offers
  • Alinda Chemical Trade Company Ltd
    Hong Kong, Hong KongUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
    View
  • Amerigo Scientific
    United States, HauppaugeUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • Angel Pharmatech Ltd.
    China, ShanghaiUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • ChemDiv Inc.
    United States, San DiegoUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • EDASA Scientific
    Russia, MoscowUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • Glixx Labs, Inc
    United States, HopkintonUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • Hello Bio
    United Kingdom, AvonmouthUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
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  • Life Chemicals
    Canada, Niagara-on-the-LakeUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
    View
  • Synblock Inc
    Canada, MontrealUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
    View
  • Vitas-M Laboratory
    Hong Kong, CentralUnclaimed profile
    Ska-31Grade, purity and minimum order on request
    Price on request
    View

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

10 suppliers in 6 countries

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Ska-31 price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • antihypertensive agent
  • biophysical role
  • cardiovascular drug
  • membrane transport modulator
  • pharmaceutical
  • potassium channel modulator

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Ska-31 is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Ska-31 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ska-31, based on the data on this page

What is Ska-31?

SKA-31 is a naphthothiazole. It has a role as an antihypertensive agent and a potassium channel modulator.

What is the CAS number of Ska-31?

The CAS registry number of Ska-31 is 40172-65-4. Other or deprecated CAS numbers: 111886-81-8.

What is the molecular formula and weight of Ska-31?

The molecular formula of Ska-31 is C11H8N2S and its molar mass is 200.27 g/mol.

What is Ska-31 used for?

Known uses and roles of Ska-31 include building blocks in research and laboratory, screening compounds in research and laboratory, antihypertensive agent, biophysical role, cardiovascular drug and 3 more.

Is Ska-31 hazardous?

Ska-31 carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ska-31?

Ska-31 is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ska-31?

CompoundList lists 10 suppliers of Ska-31 in United States, Canada, Hong Kong, China and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Ska-31?

Suppliers quote Ska-31 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 Ska-31

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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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