Molekula
3-Amino-1,2,4-triazole-5-carboxylic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3-Amino-1,2,4-triazole-5-carboxylic acid is a heterocyclic organic compound used in pharmaceutical synthesis and as a building block in medicinal chemistry. It is available with a CAS number of 3641-13-2, a molecular formula of C3H4N4O2, and a molecular weight of 128.09 g/mol. Stored at ambient temperatures, it carries a warning signal word due to potential hazards.
Molekula supplies 3-Amino-1,2,4-triazole-5-carboxylic acid at ≥ 98.0% purity in 25 g and 100 g packs, from £37.08 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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100 g — £85.40 per pack ex VAT · £102.48 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white powder |
| Melting Point | 176 - 186 °C |
| Ash | ≤ 0.5% |
| Loss on Drying | ≤ 1.0% |
| Insolubles | ≤ 0.3% |
| Assay HPLC | ≥ 98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 22677851 |
| CAS Number | 3641-13-2 |
| IUPAC Name | 3-amino-1H-1,2,4-triazole-5-carboxylic acid |
| EC Number | 222-868-1 |
| Molecular Formula | C3H4N4O2 |
| Molecular Weight | 128.09 |
| Exact Mass | 128.0334 |
| SMILES | C1(=NC(=NN1)N)C(=O)O |
| InChIKey | MVRGLMCHDCMPKD-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H4N4O2/c4-3-5-1(2(8)9)6-7-3/h(H,8,9)(H3,4,5,6,7) |
| PubChem CID | 77200 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.99.82.90 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1H-1,2,4-Triazole-3-carboxylic acid, 5-amino-
- 2-amino-5-carboxy-1,3,4-triazole
- 3-Amino-1H-1,2,4-triazole-5-carboxylic acid
- 3-AMINO-1H-1,2,4-TRIZOLE-5-CARBOXYLIC ACID
- 5-AMINO-(1,3,4)TRIAZOLE-2-CARBOXYLIC ACID
- 5-AMINO-1,2,4-TRIAZOLE-3-CARBOXYLIC ACID
- 5-Amino-1H-1,2,4-triazole-3-carboxylic acid
- 5-amino-2H-1,2,4-triazole-3-carboxylic acid
- 5-Carboxy-3-amino-1,2,4-triazole
- s-Triazole-3-carboxylic acid, 5-amino-
Frequently asked questions
What is 3-Amino-1,2,4-triazole-5-carboxylic acid used for?
It is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of heterocyclic compounds with biological activity.
What is the chemical formula and molecular weight?
The formula is C3H4N4O2 with a molecular weight of 128.09 g/mol.
How should this compound be stored?
Store at ambient temperature in a dry, well-ventilated area away from incompatible materials.
What grade is available?
It is supplied as a white to off-white powder with an HPLC assay of at least 98.0%, a melting point of 176 - 186 °C, ash of no more than 0.5%, loss on drying of no more than 1.0% and insolubles of no more than 0.3%.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and lead times.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
Where can I buy 3-Amino-1,2,4-triazole-5-carboxylic acid?
Directly from Molekula, which lists 3-Amino-1,2,4-triazole-5-carboxylic acid in 25 g and 100 g packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.