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4-Phenyl-1,2,4-triazoline-3,5-dione

CAS 4233-33-4 C8H5N3O2 MW 175.14 Made to order

4-Phenyl-1,2,4-triazoline-3,5-dione is a heterocyclic organic compound used as a reagent in synthetic chemistry, particularly in cycloaddition reactions and as a dienophile. It is a white to off-white crystalline powder with a molecular formula of C8H5N3O2 and a molecular weight of 175.14 g/mol. It is stable when stored at 2 to 8 °C and classified with a warning signal word due to its reactivity. Molekula supplies 4-Phenyl-1,2,4-triazoline-3,5-dione from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

4-Phenyl-1,2,4-triazoline-3,5-dione is a heterocyclic organic compound used as a reagent in synthetic chemistry, particularly in cycloaddition reactions and as a dienophile. It is a white to off-white crystalline powder with a molecular formula of C8H5N3O2 and a molecular weight of 175.14 g/mol. It is stable when stored at 2 to 8 °C and classified with a warning signal word due to its reactivity. Molekula supplies 4-Phenyl-1,2,4-triazoline-3,5-dione from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance Red powder
Identification Conforms to reference

Storage & handling

Property Value
Storage Temperature 2 to 8 °C
Shelf Life 48 months
Acidity Neutral

Identification

Property Value
CAS Number 4233-33-4
Molecular Formula C8H5N3O2
Molecular Weight 175.14
SMILES C1=CC=C(C=C1)N2C(=O)N=NC2=O
REACH Code Y113
HTS Code 2933998290
Tariff Code 2933998090

Safety & GHS

Warning
  • GHS pictogram — Explosive Explosive GHS01

Hazard statements

  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

Precautionary statements

  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P302+352 IF ON SKIN: Wash with soap and water
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is 4-Phenyl-1,2,4-triazoline-3,5-dione used for?

It is primarily used as a reagent in organic synthesis, particularly in cycloaddition reactions and as a dienophile in Diels-Alder reactions.

What is the chemical formula and molecular weight?

The formula is C8H5N3O2 with a molecular weight of 175.14 g/mol.

How should this compound be stored?

Store at 2 to 8 °C in a cool, dry place, protected from light and moisture.

What grade is available?

Available in technical grade; specific purity details can be provided upon request.

Can Molekula supply this in bulk?

Yes, bulk quantities are available—please contact our sales team for pricing and availability.

What documentation comes with the order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.

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