2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole
2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole (CAS: 33621-61-3) is a halogenated heterocyclic compound with the molecular formula C8H6ClN3O and a molecular weight of 195.61 g/mol. It serves as a valuable building block in organic synthesis, particularly for the construction of complex molecules and pharmaceutical intermediates. This oxadiazole derivative is utilised in research and development settings for its potential to introduce specific structural motifs into target compounds.
- Synonyms
- 33621-61-3, C8H6ClN3O

Organic Synthesis Intermediate
This compound functions as a key intermediate in multi-step organic syntheses. Its structural features are leveraged for the development of novel compounds and advanced materials.
Pharmaceutical Research
Used in medicinal chemistry research for the synthesis of potential drug candidates and biologically active molecules. The oxadiazole scaffold is a recognised pharmacophore.
Heterocyclic Chemistry
Serves as a versatile building block for constructing diverse heterocyclic systems. Its reactivity allows for further functionalisation and elaboration.
| Molecular weight | 195.61 |
|---|---|
| Empirical formula | C8H6ClN3O |
| Assay | 95% |
| Melting point | 245 °C (dec.) |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole used for?
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2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole is primarily used as a building block in organic synthesis and for research in pharmaceutical chemistry to create novel compounds and intermediates.
What is the CAS number and molecular formula for this compound?
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The CAS number is 33621-61-3, and the empirical formula (Hill notation) is C8H6ClN3O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound at an assay of 95%. We do not represent it as USP, BP, or EP grade.
How should this chemical be handled safely?
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This compound is classified as Dangerous (GHS06, Danger) with hazard statements H301 (Toxic if swallowed) and H319 (Causes serious eye irritation). Handle with appropriate personal protective equipment, including a dust mask type N95, eyeshields, faceshields, and gloves. Follow precautionary statements P301 + P310 (IF SWALLOWED: Immediately call a POISON CENTER/doctor) and P305 + P351 + P338 (IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing).
Is this chemical a controlled substance?
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The provided data does not indicate that this chemical is a controlled substance.
How is 2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole exported and shipped?
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This compound is classified under UN 2811, Hazard Class 6.1, Packing Group III, and is exported and shipped according to relevant dangerous goods regulations.
How can I request a quote or sample?
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Please contact our sales team via the website to request a quote or sample for 2-Amino-5-(4-chlorophenyl)-1,3,4-oxadiazole.
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