Australia
Bangladesh
Belgium
Brazil
Canada
China
Egypt
France
Germany
India
Indonesia
Ireland
VAQORAAllopurinol - Impurity A
Synonyms: Allopurinol EP Impurity A · 1H-Pyrazole-4-carboxamide, 3-amino-, sulfate (2:1) · 5-Aminopyrazole-4-carboxamide hemisulphate · 3-Amino-4-carboxamidopyrazole hemisulfate
CAS No.27511-79-1
FormulaC8H14N8O6S
Mol. weight350.32
Catalogue No.VQ-043035
PurityReference Standard
HSN38229090
Allopurinol - Impurity A (CAS 27511-79-1) – Allopurinol impurity standard. C8H14N8O6S, MW 350.32. Buy from Vaqora Chemicals with COA and worldwide shipping.
Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
Enquire Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Allopurinol - Impurity A
Vaqora Chemicals supplies Allopurinol - Impurity A, an impurity of Allopurinol registered under CAS number 27511-79-1. The compound has the formula C8H14N8O6S, corresponding to a molecular weight of 350.32 g/mol. It is also known as Allopurinol EP Impurity A or 5-Aminopyrazole-4-carboxamide hemisulphate.
It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 7 hazard statements. Review the Safety Data Sheet before use.
As a characterised impurity of Allopurinol, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.
Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.
Typical applications
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Industries
Related to Allopurinol
View every impurity, metabolite and intermediate we list for Allopurinol.
Allopurinol impuritiesSpecifications & identifiers
| Product name | Allopurinol - Impurity A |
|---|---|
| Catalogue No. | VQ-043035 |
| CAS Number | 27511-79-1 |
| IUPAC name | bis(5-amino-1H-pyrazole-4-carboxamide);sulfuric acid |
| Molecular formula | C8H14N8O6S |
| Molecular weight | 350.32 g/mol |
| Exact mass | 350.0757 |
| Grade | Reference Standard |
| HSN code | 38229090 |
| InChIKey | UMPKASYMNORSRO-UHFFFAOYSA-N |
| SMILES | C1=NNC(=C1C(=O)N)N.C1=NNC(=C1C(=O)N)N.OS(=O)(=O)O |
| PubChem CID | 2723907 |
| Physical form | Solid |
|---|---|
| H-bond donors / acceptors | 8 / 10 |
| TPSA | 279 Ų |
| Synonyms | Allopurinol EP Impurity A, 1H-Pyrazole-4-carboxamide, 3-amino-, sulfate (2:1), 5-Aminopyrazole-4-carboxamide hemisulphate, 3-Amino-4-carboxamidopyrazole hemisulfate, 3-Amino-4-pyrazolecarboxamide hemisulfate, 3-Amino-1H-pyrazole-4-carboxamide sulfate(2:1), 3-Amino-1H-pyrazole-4-carboxamide Hemisulfate, 3-Amino-4-carbamoylpyrazole Hemisulfate, 3-Amino-4-pyrazolecarboxamide hemisulfate salt, 3-Aminopyrazole-4-carboxamide Hemisulfate, 5-Amino-1H-pyrazole-4-carboxamide Hemisulphate, 5-amino-1H-pyrazole-4-carboxamide hemisulfate |
Safety & hazard information (GHS)
Signal word: Warning
Hazard statements
H302+H312+H332Harmful if swallowed, in contact with skin or if inhaledH302Harmful if swallowedH315Causes skin irritationH317May cause an allergic skin reactionH319Causes serious eye irritationH335May cause respiratory irritationH411Toxic to aquatic life with long lasting effects
Precautionary statements: P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P391, P403 + P233, P405, P501
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of Allopurinol - Impurity A?
The CAS Registry Number of Allopurinol - Impurity A is 27511-79-1. It is also known as Allopurinol EP Impurity A, 1H-Pyrazole-4-carboxamide, 3-amino-, sulfate (2:1), 5-Aminopyrazole-4-carboxamide hemisulphate.
What is the molecular formula and molecular weight of Allopurinol - Impurity A?
Allopurinol - Impurity A has the molecular formula C8H14N8O6S and a molecular weight of 350.32 g/mol.
What is Allopurinol - Impurity A used for?
Allopurinol - Impurity A is supplied as a characterised reference material related to Allopurinol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.
Which grade and pack sizes of Allopurinol - Impurity A can I order?
We supply Allopurinol - Impurity A in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Allopurinol - Impurity A?
Yes. Every lot of Allopurinol - Impurity A is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can Allopurinol - Impurity A be shipped internationally?
Yes. Allopurinol - Impurity A is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.
Enquire about Allopurinol - Impurity A
We reply within one business day with price, pack options, lead time and documentation.
Related products
