Ammonium purpurate, GR 99%+

Name: Ammonium purpurate, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-000317

About Ammonium purpurate, GR 99%+

Vaqora Chemicals supplies Ammonium purpurate (AR grade), an indicator registered under CAS number 3051-09-0 with a typical assay of ≥99%. The compound has the formula C8H8N6O6, corresponding to a molecular weight of 284.19 g/mol. Its systematic (IUPAC) name is azanium 2,4-dioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidin-6-olate. Alternative names: Murexide and Acid ammonium purpurate.

It is supplied as a violet to purple to black powder. Reported physical data include a melting point of above 300 °C. Keep the container tightly sealed and store it in a cool, dry area. Good laboratory practice and suitable PPE are recommended during handling.

Key uses span titration end-point detection, pH determination, analytical testing and indicator for titrations. It is used across academic and industrial research.

Standard pack sizes are 5 g, 10 g, 25 g and 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Titration end-point detection
pH determination
Analytical testing
Indicator for titrations

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Ammonium purpurate, GR 99%+
Catalogue No.	VQ-000317
CAS Number	3051-09-0
IUPAC name	azanium 2,4-dioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidin-6-olate
Molecular formula	C₈H₈N₆O₆
Molecular weight	284.19 g/mol
Exact mass	284.0505
Grade	AR
Purity / assay	≥99%
HSN code	29335400
InChIKey	LJYRLGOJYKPILZ-UHFFFAOYSA-N
SMILES	C1(=C(NC(=O)NC1=O)[O-])N=C2C(=O)NC(=O)NC2=O.[NH4+]
PubChem CID	18275

Physical properties
Physical form	Powder
Appearance	Violet to purple to black powder
Melting point	>300 °C
H-bond donors / acceptors	5 / 7
TPSA	170 Å²
Synonyms	5,5'-Nitrilodibarbituric acid monoammonium salt, Murexide, Acid ammonium purpurate, Ammonium salt purpuric acid, Purpurate, Ammonium, Ammonium Purpurate, Acid, Purpurate, Acid Ammonium, Ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-ylideneamino)barbiturate, Murexide (C.I. 56085), Barbituric acid, 5,5'-nitrilodi-, monoammonium salt (VAN)

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 3051-09-0

Ammonium purpurate, 99%

CAS: 3051-09-0
Formula: C₈H₈N₆O₆
MW: 284.19 g/mol

VQ-000316

Frequently asked questions

What is the CAS number of Ammonium purpurate, GR 99%+?

The CAS Registry Number of Ammonium purpurate, GR 99%+ is 3051-09-0. It is also known as 5,5'-Nitrilodibarbituric acid monoammonium salt, Murexide, Acid ammonium purpurate.

What is the molecular formula and molecular weight of Ammonium purpurate, GR 99%+?

Ammonium purpurate, GR 99%+ has the molecular formula C8H8N6O6 and a molecular weight of 284.19 g/mol. Its IUPAC name is azanium 2,4-dioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidin-6-olate.

Which grade and pack sizes of Ammonium purpurate, GR 99%+ can I order?

We supply Ammonium purpurate, GR 99%+ in AR (≥99%) grade, in 5 g, 10 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ammonium purpurate, GR 99%+?

Yes. Every lot of Ammonium purpurate, GR 99%+ 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 Ammonium purpurate, GR 99%+ be shipped internationally?

Yes. We export Ammonium purpurate, GR 99%+ worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.