ChemicalBook >> CAS DataBase List >>Murexide
Murexide
- CAS No.
- 3051-09-0
- Chemical Name:
- Murexide
- Synonyms
- AMMONIUM PURPURATE;AMMONIUM PERPURATE;Ammonium puranate;ammonium 2,6-dioxo-5-[(2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-olate;CI 56085;MUREXIDE;S NO 1138;Naples red;Murexide99%;CI NO 56085
- CBNumber:
- CB3220090
- Molecular Formula:
- C8H8N6O6
- Molecular Weight:
- 284.19
- MDL Number:
- MFCD00012777
- MOL File:
- 3051-09-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 01:03:14
| Melting point | 300 °C |
|---|---|
| Boiling point | 443.25°C (rough estimate) |
| Density | 1.5756 (rough estimate) |
| bulk density | 330kg/m3 |
| refractive index | 1.8000 (estimate) |
| storage temp. | no restrictions. |
| solubility | 1g/l |
| Colour Index | 56085 |
| pka | pK1:0.0;pK2:9.20;pK3:10.50 (25°C) |
| form | Solid |
| color | Reddish-violet |
| PH | 5 (1g/l, H2O, 20℃) |
| Odor | Odorless |
| Water Solubility | Slightly soluble |
| λmax | 525 nm |
| Merck | 14,6306 |
| BRN | 3582175 |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChI | 1S/C8H5N5O6.H3N/c14-3-1(4(15)11-7(18)10-3)9-2-5(16)12-8(19)13-6(2)17;/h(H2,10,11,14,15,18)(H3,12,13,16,17,19);1H3 |
| InChIKey | HZRQHQKDQSVFMQ-UHFFFAOYSA-N |
| SMILES | N.OC1=C(\N=C2\C(=O)NC(=O)NC2=O)C(=O)NC(=O)N1 |
| FDA UNII | 4W6L62S876 |
| NIST Chemistry Reference | Ammonium purpurate(3051-09-0) |
| EPA Substance Registry System | 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-, monoammonium salt (3051-09-0) |
| UNSPSC Code | 12352107 |
| NACRES | NB.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H332-H335 | |||||||||
| Precautionary statements | P280-P305+P351+P338-P310 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-40 | |||||||||
| Safety Statements | 24/25-22-36/37 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29335995 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Murexide price More Price(51)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 222461 | Murexide ACS reagent | 3051-09-0 | 5g | $65.5 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06161 | Murexide (ammonium purpurate) metal indicator ACS | 3051-09-0 | 5G | $103 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06161 | Murexide (ammonium purpurate) metal indicator ACS | 3051-09-0 | 25g | $258 | 2026-04-30 | Buy |
| TCI Chemical | M0474 | Murexide | 3051-09-0 | 1g | $24 | 2026-04-30 | Buy |
| TCI Chemical | M0474 | Murexide | 3051-09-0 | 5g | $43 | 2026-04-30 | Buy |
Murexide Chemical Properties, Uses, Production
Chemical Properties
Bordeaux powder
Uses
Indicator for complexometric titrations.
Uses
Murexide is used as a complexometric indicator in analytical chemistry for complexometric titrations of calcium, copper nickel and cobalt. It is an inhibitor of dihydrofolate reductase. Further, it acts as an enhancer of sonochemical destruction of chlorinated hydrocarbon pollutants.
Purification Methods
The sample may be grossly contaminated with uramil, alloxanthine, etc., and may be difficult to purify. It is better to synthesise it from pure alloxanthine [Davidson J Am Chem Soc 58 1821 1936]. Recrystallise it from water. [Kuhn & Lyman Chem Ber 69 1547 1936, Beilstein 25 I 709, 25 III/IV 4236.]
Murexide Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
Global Suppliers ( 354)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Dr. J. Pharmachem (India) | +91 20 24332987 | info@jpharmachem.com | India | 97 | 55 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Tangshan Moneide Trading Co., Ltd. | 0315-8309571 15633399667 | sales@moneidechem.com | China | 703 | 57 |
View Latest Price from Murexide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-22 | Murexide
3051-09-0
|
1kg | 99% | 20MT | Watson Biotechnology Co.,Ltd | ||
 |
2026-05-28 | Ammonium purpurate
3051-09-0
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | Murexide
3051-09-0
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Murexide
3051-09-0
- 99%
- Watson Biotechnology Co.,Ltd
-
- Ammonium purpurate
3051-09-0
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Murexide
3051-09-0
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
Acid ammonium purpurate,Ammonium purpurate,5,5'-Nitrilodibarbituric acid ammonium salt
5,5'-NITRILODIBARBITURIC ACID MONOAMMONIUM SALT
ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-ylideneamino)barbiturate
AMMONIUM PURPURATE ACID
Purpuric Acid, Ammonium Salt
MUREXIDE A.C.S. REAGENT
MUREXIDE FOR COMPLEXOMETRY
MUREXIDE REDDISH-BROWN CRYSTALS
MUREXIDE (AMMONIUM PURPURATE) METAL INDICATOR ACS
AmmoniumPurpurateGr
Murexide99%
Murexide, 98+%
AMMONIUM PURPURATE GR (Murexide C.I.No 56085 )
Murexide 99%
CALCIUM HARDNESS INDICATOR
CALCIUM HARDNESS INDICATOR TABLETS
CI 56085
CI NO 56085
S NO 1138
MUREXIDE
MUREXIDE INDICATOR
murexide,ammoniumpurpurate
Naples red
5,5'-Nitrilodibarbituric acid ammonium derivative
Ammonium 5,5'-nitrilodibarbiturate, Ammonium perpurate
2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-, monoammonium salt
2,4,6(1h,3h,5h)-pyrimidinetrione,5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imin
2,4,6(1H,3H,5H,)-Pyrimidinetrione,5-((hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino)-,monoammoniumsalt
5-[(Hexahydro-2,4,6-trioxo-5-pyrimidinyl)imi-no]-2,4,6(1H,3H,5H)-pyrimidinetionemonoam-moniumsalt
5-[(Hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-2,4,6(1H,3H,5H)-pyrimidinetrione monoammonium salt
Acid ammonium purpurate
Ammonium salt purpuric acid
Barbituric acid, 5,5'-nitrilodi-, monoammonium salt
monoammoniumsalt
MUREXIDE extrapure AR
5,5μ-Nitrilodibarbituric acid monoammonium salt, Ammonium purpurate
5,5'-Nitrilodibarbituric acid
Azanium 2,6-dioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-3H-pyrimidin-4-olate
5-[(Hexahydro-2,4,6-trioxopyrimidine-5-yl)imino]-2,4,6(1H,3H,5H)-pyrimidinetrione·ammonia
Ammonium purprate
Murexide (CI x 56085)
5,5′-Nitrilodibarbituric acid monoammonium
Ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-
ylideneamino)barbiturate
Murexide, indicator for metal titration
Murexide p.a.
MUREXIDE (C.I. 56085)
Murexide Powder ACS
MUREXIDE (AMMONIUM PURPURATE) METAL INDI
Murexide, ACS reagent, indicator
5-[(2,4,6-trioxohexahydropyrimidin-5-yl)imino]pyrimidine-2,4,6(1H,3H,5H)-trione ammoniate
ammonium 2,6-dioxo-5-[(2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene)amino]-1,2,3,6-tetrahydropyrimidin-4-olate
Ammonium urea acid indicator
Murexide, indicator, ACS reagent
6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate
MUREXIDEMUREXIDEMUREXIDE
Purpuric Acid Ammonium Salt (Murexide)
Murexide ISO 9001：2015 REACH
