CAS No 3051-09-0 , Purpuric Acid, Ammonium Salt Search by region : Russia

Name: Purpuric Acid, Ammonium Salt
Synonyms: Purpuric Acid, Ammonium Salt;Ammonium purpurate; Ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-ylideneamino)barbiturate;
CAS Registry Number:3051-09-0
Flash Point: 480.8°Cat760mmHg
Boiling Point: 480.8°Cat760mmHg
Density: g/cm3
Water Solubility: Slightly soluble
Safety Statements: S22;S24/25
Hazard Symbols: Xn
HS Code: 29335995
Flash Point: 480.8°Cat760mmHg
EINECS: 221-266-6
Molecular Weight: 284.18
InChI: InChI=1/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
Risk Statements: S22,S24/25,
Molecular Formula: C8H8N6O6
Molecular Structure:

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3051-09-0 ammonium 2,6-dioxo-5-{[2,4,6-trioxotetrahydro-5(2H)-pyrimidinylidene]amino}-1,2,3,6-tetrahydro-4-pyrimidinolate

ammonium 2,6-dioxo-5-{[2,4,6-trioxotetrahydro-5(2H)-pyrimidinylidene]amino}-1,2,3,6-tetrahydro-4-pyrimidinolate
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References of Purpuric Acid, Ammonium Salt

Title: Murexide
CAS Registry Number: 3051-09-0
CAS Name: 5-[(Hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-2,4,6(1H,3H,5H)-pyrimidinetrione monoammonium salt
Synonyms: 5,5￠-nitrilodibarbituric acid monoammonium salt; acid ammonium purpurate; ammonium purpurate
Molecular Formula: C8H8N6O6
Molecular Weight: 284.19
Percent Composition: C 33.81%, H 2.84%, N 29.57%, O 33.78%
Literature References: Prepn from alloxan + NH3: Hartley, J. Chem. Soc. 87, 1791 (1905); Schwartz, Handritschk, DD 17589 (1959), C.A. 55, 3630a (1961); from alloxantin + ammonium acetate: Davidson, J. Am. Chem. Soc. 58, 1821 (1936). Structure: Hartley, J. Chem. Soc. 87, 1796 (1905); Winslow, J. Am. Chem. Soc. 61, 2089 (1939); Schreiber, Mitt. Dtsch. Pharm. Ges. 28, 20 (1958).
Properties: Purple-red crystals with green metallic luster. Absorption max in water: 520 nm. Sparingly sol in cold water, more in hot water; practically insol in alcohol, ether. The H2O soln is deep purple and the aq NaOH soln is deep blue.
Absorption maximum: Absorption max in water: 520 nm
Use: Indicator for complexometric titrations.