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Heterocyclic building blocks

Thiazine

Also known as 1,4-thiazine, 4H-1,4-Thiazine, 4H-1,4-thiazin

CAS 290-57-3Formula C4H5NSMolar mass 99.16 g/mol
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Thiazine chemical structure, C4H5NS, CAS 290-57-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
290-57-3
Formula
C4H5NS
Molar mass
99.16 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Thiazine?

Plain description, key identifiers and synonyms

Thiazine is a chemical substance with the molecular formula C4H5NS and a molar mass of 99.16 g/mol. Its CAS registry number is 290-57-3. The IUPAC name is 4H-1,4-thiazine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4H-1,4-thiazine
CAS number
290-57-3Other or deprecated CAS: 11084-06-3
Molecular formula
C4H5NS
UNII
ANC4JK8KEM
InChIKey
ZOXMLSDKXHNVOQ-UHFFFAOYSA-N
InChI
InChI=1S/C4H5NS/c1-3-6-4-2-5-1/h1-5H
SMILES (canonical and isomeric)
C1=CSC=CN1

Synonyms

  • 1,4-thiazine
  • 4H-1,4-Thiazine
  • 4H-1,4-thiazin

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
99.16 g/molcalc.
Exact mass
99.0143 Dacalc.
LogP (octanol/water)
1.27calc.
Topological polar surface area
12.03 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
1calc.
Aromatic rings
0calc.
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, C1=CSC=CN1

C1=CSC=CN1

1 ring, 6 atoms. This chemical is the scaffold itself.

4 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.

Thiazine suppliers

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

No supplier listings yet

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Thiazine 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

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 Thiazine 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 Thiazine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Thiazine, based on the data on this page

What is Thiazine?

Thiazine is a chemical substance with the molecular formula C4H5NS and a molar mass of 99.16 g/mol. Its CAS registry number is 290-57-3. The IUPAC name is 4H-1,4-thiazine.

What is the CAS number of Thiazine?

The CAS registry number of Thiazine is 290-57-3. Other or deprecated CAS numbers: 11084-06-3.

What is the molecular formula and weight of Thiazine?

The molecular formula of Thiazine is C4H5NS and its molar mass is 99.16 g/mol.

What is Thiazine used for?

Known uses and roles of Thiazine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Thiazine hazardous?

No GHS hazard classification for Thiazine 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 Thiazine?

Thiazine 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 Thiazine?

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

What is the price of Thiazine?

Suppliers quote Thiazine 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 Thiazine

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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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