3-Amino-4-pyrazolecarboxamide hemisulfate
- CAS No.
- 27511-79-1
- Chemical Name:
- 3-Amino-4-pyrazolecarboxamide hemisulfate
- Synonyms
- 3-Amino Pyrazole Carboxamide Hemisulphate;Allopurinol Related CoMpound A;5-aminopyrazole-4-carboxamide hemisulphate;Allopurinol impurity A CRS;3-AMino Pyrazole CarboxaMide HeMisulfate;3-AMINOPYRAZOLE-4-CARBOXAMIDE HEMISULPHATE;3-amino-4-pyrazolecarboxamide hemisulfate salt;semisulfate;3-Amino-4-pyrazoleca;Allopurinol EP Imp A
- CBNumber:
- CB9708204
- Molecular Formula:
- C8H14N8O6S
- Molecular Weight:
- 350.31
- MDL Number:
- MFCD00013093
- MOL File:
- 27511-79-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 3-Amino-4-pyrazolecarboxamide hemisulfate salt | 153052 | 5g | $234 |
| Allopurinol Related Compound A United States Pharmacopeia (USP) Reference Standard | 1013024 | 25mg | $1290 |
| 3-Aminopyrazole-4-carboxamide Hemisulfate >98.0%(T) | A1532 | 5g | $23 |
| 3-Aminopyrazole-4-carboxamide Hemisulfate >98.0%(T) | A1532 | 25g | $41 |
| 3-Amino-4-carbamoylpyrazole Hemisulfate | 002034 | 5g | $340 |
| More product size | |||
| Melting point | 224 °C (dec.)(lit.) |
|---|---|
| Density | 0.84 |
| storage temp. | 2-8°C |
| solubility | DMSO (Slightly), Methanol (Very Slightly), Water (Slightly, Heated, Sonicated) |
| form | Solid |
| color | White to Pale Brown |
| BRN | 3767200 |
| Stability | Hygroscopic |
| InChI | InChI=1S/2C4H6N4O.H2O4S/c2*5-3-2(4(6)9)1-7-8-3;1-5(2,3)4/h2*1H,(H2,6,9)(H3,5,7,8);(H2,1,2,3,4) |
| InChIKey | UMPKASYMNORSRO-UHFFFAOYSA-N |
| SMILES | C1(C(=O)N)=CNN=C1N.C1(C(=O)N)=CNN=C1N.S(=O)(=O)(O)O |
| FDA UNII | 6H5TH7QBY8 |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P271-P280 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29331990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
3-Amino-4-pyrazolecarboxamide hemisulfate price More Price(89)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 153052 | 3-Amino-4-pyrazolecarboxamide hemisulfate salt | 27511-79-1 | 5g | $234 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1013024 | Allopurinol Related Compound A United States Pharmacopeia (USP) Reference Standard | 27511-79-1 | 25mg | $1290 | 2026-04-30 | Buy |
| TCI Chemical | A1532 | 3-Aminopyrazole-4-carboxamide Hemisulfate >98.0%(T) | 27511-79-1 | 5g | $23 | 2026-04-30 | Buy |
| TCI Chemical | A1532 | 3-Aminopyrazole-4-carboxamide Hemisulfate >98.0%(T) | 27511-79-1 | 25g | $41 | 2026-04-30 | Buy |
| Usbiological | 002034 | 3-Amino-4-carbamoylpyrazole Hemisulfate | 27511-79-1 | 5g | $340 | 2026-06-03 | Buy |
3-Amino-4-pyrazolecarboxamide hemisulfate Chemical Properties,Uses,Production
Chemical Properties
white to slightly beige powder
Uses
3-Amino-4-pyrazolecarboxamide hemisulfate salt was used to prepare 3-carbamoyl derivatives.
Uses
Reactant involved in synthesis of:
- Triazines and their phosphorus analogs
- Pyrazolo[3,4-d]pyrimidines for use as cyclin-dependent kinase 2 inhibitors
Uses
Allopurinol (A547300) impurity. A pyrazole derivative that has been shown to induce neoplasm immunogenicity.
General Description
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
3-Amino-4-pyrazolecarboxamide hemisulfate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| Hebei Zhuanglai Chemical Trading Co Ltd | +86-16264648883 | niki@zlchemi.com | China | 7245 | 58 |
| Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Hi-Tech Chemistry Corp | 0519-86626038 | yuhh@hitechem.com | CHINA | 810 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| NINGBO INNO PHARMCHEM CO., LTD. | 13867897135 | sales@nbinno.com | CHINA | 923 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
View Lastest Price from 3-Amino-4-pyrazolecarboxamide hemisulfate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-06-08 | 3-Amino-4-pyrazolecarboxamide hemisulfate
27511-79-1
|
1KG | 98% | 500kg | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2026-05-28 | 3-Amino-4-Pyrazole Carbosamide Hemisulfate
27511-79-1
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
![]() |
2025-06-20 | 3-Amino-4-pyrazolecarboxamide hemisulfate
27511-79-1
|
$2.00 | 25KG | 99% | 1000tons/month | Hebei Yanxi Chemical Co., Ltd.
|
-

- 3-Amino-4-pyrazolecarboxamide hemisulfate
27511-79-1
- $0.00
- 98%
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- 3-Amino-4-Pyrazole Carbosamide Hemisulfate
27511-79-1
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-

- 3-Amino-4-pyrazolecarboxamide hemisulfate
27511-79-1
- $2.00
- 99%
- Hebei Yanxi Chemical Co., Ltd.
3-Amino-4-pyrazolecarboxamide hemisulfate Spectrum
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