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Heterocyclic building blocks

Tetrantoin

Also known as Spirodon, Tetraline-(2-spiro-5)-hydantoin, 3',4'-Dihydrospiro(imidazolidine-4,2'(1'H)-naphthalene)-2,5-dione

CAS 52094-70-9Formula C12H12N2O2Molar mass 216.24 g/molEC 257-658-9
GHS signal word: Warning. Pictograms: Harmful or irritant
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Tetrantoin chemical structure, C12H12N2O2, CAS 52094-70-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
52094-70-9
Formula
C12H12N2O2
Molar mass
216.24 g/mol
EC number
257-658-9
HS code
293329
Category
Heterocyclic building blocks

What is Tetrantoin?

Plain description, key identifiers and synonyms

Tetrantoin is a chemical substance with the molecular formula C12H12N2O2 and a molar mass of 216.24 g/mol. Its CAS registry number is 52094-70-9. The IUPAC name is spiro[2,4-dihydro-1H-naphthalene-3,5'-imidazolidine]-2',4'-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
spiro[2,4-dihydro-1H-naphthalene-3,5'-imidazolidine]-2',4'-dione
CAS number
52094-70-9 CAS number cross-checkedOther or deprecated CAS: 6270-37-7
EC number
257-658-9
Molecular formula
C12H12N2O2
UNII
3NM8B9838N
InChIKey
ZWYUGDUPLSGYSK-UHFFFAOYSA-N
InChI
InChI=1S/C12H12N2O2/c15-10-12(14-11(16)13-10)6-5-8-3-1-2-4-9(8)7-12/h1-4H,5-7H2,(H2,13,14,15,16)
SMILES (canonical and isomeric)
C1CC2(CC3=CC=CC=C31)C(=O)NC(=O)N2

Synonyms

  • Spirodon
  • Tetraline-(2-spiro-5)-hydantoin
  • 3',4'-Dihydrospiro(imidazolidine-4,2'(1'H)-naphthalene)-2,5-dione
  • 7,8-Benzo-1,3-diazaspiro(4.5)decane-2,4-dione
  • Spiro(imidazolidine-4,2'(1'H)-naphthalene)-2,5-dione, 3',4'-dihydro-
  • 7,8-Benzo-1,3-diazaspiro[4.5]decane-2,4-dione
  • Spiro[imidazolidine-4,2'(1'H)-naphthalene]-2,5-dione, 3',4'-dihydro-
  • (+-)-Tetrantoin
  • 4-24-00-01554 (Beilstein Handbook Reference)
  • 7,6-Benzo-1,3-diazaspiro(4,5)decane-2,4-dione
  • 3',4'-dihydro-1'H-spiro[imidazolidine-4,2'-naphthalene]-2,5-dione
  • spiro[2,4-dihydro-1H-naphthalene-3,5'-imidazolidine]-2',4'-dione
  • (+/-)-Tetrantoin
  • Benzo[g]quinazoline-2,3H)-dione
  • 7,3-diazaspiro[4.5]decane-2,4-dione
  • Spiro[imidazolidine-4,5-dione, 3',4'-dihydro-
  • 7,8-Benzo-1,3-diazaspiro(4,5)-decane-2,4-dione
  • dihydrospiro(imidazolidine-4,2'(1'h)-naphthalene)-2,5-dione

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
216.24 g/molcalc.
Exact mass
216.0899 Dacalc.
LogP (octanol/water)
0.75calc.
Topological polar surface area
58.2 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
16calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.33calc.
Formal charge
0calc.
Stereocentres
1calc.
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, O=C1NC(=O)C2(CCc3ccccc3C2)N1

O=C1NC(=O)C2(CCc3ccccc3C2)N1

3 rings, 16 atoms. This chemical is the scaffold itself.

14 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

Tetrantoin suppliers

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Tetrantoin 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

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 Tetrantoin is traded under.

HS 2933.29Indicative HS code

Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the…

World exports in 2024
$1.43B
−7.6% vs 2023, imports $1.47B
2019 to 2024
Top exporters
  1. China28.1%
  2. France * partner reported12.7%
  3. India * partner reported10.3%
Top importers
  1. United Kingdom13.0%
  2. United States7.9%
  3. China6.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Tetrantoin?

Tetrantoin is a chemical substance with the molecular formula C12H12N2O2 and a molar mass of 216.24 g/mol. Its CAS registry number is 52094-70-9. The IUPAC name is spiro[2,4-dihydro-1H-naphthalene-3,5'-imidazolidine]-2',4'-dione.

What is the CAS number of Tetrantoin?

The CAS registry number of Tetrantoin is 52094-70-9. Other or deprecated CAS numbers: 6270-37-7.

What is the molecular formula and weight of Tetrantoin?

The molecular formula of Tetrantoin is C12H12N2O2 and its molar mass is 216.24 g/mol.

What is Tetrantoin used for?

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

Is Tetrantoin hazardous?

Tetrantoin 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 Tetrantoin?

Tetrantoin is usually classified under HS code 293329 (Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tetrantoin?

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What is the price of Tetrantoin?

Suppliers quote Tetrantoin 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 Tetrantoin

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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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