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CAS No 66-22-8 , 1H-pyrimidine-2,4-dione

  • Name: 1H-pyrimidine-2,4-dione
  • Synonyms: 2,4(1H,3H)-Pyrimidinedione; 2,4-Pyrimidinedione; Pirod; 2,4-Pyrimidinediol; 66-22-8;1H-pyrimidine-2,4-dione;2,4-Dihydroxypyrimidine; 2,4-Dioxopyrimidine; Pyrod;
  • CAS Registry Number:
  • Transport: HAZARD
  • Melting Point: 335 ºC
  • Boiling Point:
  • Density: 1.321 g/cm43
  • Refractive index: 1.501
  • Safety Statements: S24/25
  • Hazard Symbols: UN NO.
  • EINECS: 200-621-9
  • Molecular Weight: 112.08676
  • InchiKey: ISAKRJDGNUQOIC-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H4N2O2/c7-3-1-2-5-4(8)6-3/h1-2H,(H2,5,6,7,8)
  • Risk Statements: S24/25
  • Molecular Formula: C4H4N2O2
  • Molecular Structure:CAS No:66-22-8 1H-pyrimidine-2,4-dione
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66-22-8 Uracil

  • Chemreagents is dedicated to bring high quality and cost effective chemical reagents and advanced intermediates to our global customers. Chemreagents has more than 30000 products in stock at our warehouse. In addition to the catalog products, Chemrea...
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66-22-8 Uracil

  • Hunan Huateng Pharmaceutical Co., Ltd is a company committed to research and development, production and sales of high-end biological high-tech enterprise certification, chemical reagents and bulk pharmaceutical intermediates. Huateng pharmaceuticals...
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66-22-8 URACIL; 99%

  • Germany ABCR GmbH & Co KG [Manufacturer]
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66-22-8 2,4-(1H,3H-PYRIMIDINEDIONE) = URACIL

  • Germany CHEMOS GmbH [Manufacturer]
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66-22-8 Uracil

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66-22-8 Uracil

  • China Shanghai Hanhong Chemical Co., Ltd. [Manufacturer, Trading Company, Agent]
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66-22-8 Uracil

  • China SHANGHAI HANHONG CHEMICAL CO.,LTD. [Manufacturers]
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66-22-8 Uracil

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66-22-8 URACIL

  • United States Bromorganics Corporation [Manufacturer]
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66-22-8 Uracil

  • China YiPeng Chemical [Manufacturers]
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References of 1H-pyrimidine-2,4-dione
Title: Uracil
CAS Registry Number: 66-22-8
CAS Name: 2,4(1H,3H)-Pyrimidinedione
Synonyms: 2,4-dioxopyrimidine; 2,4-pyrimidinediol; 4-hydroxy-2(1H)-pyrimidinone; 2-hydroxy-4(1H)-pyrimidinone; 2-hydroxy-4(3H)-pyrimidinone
Molecular Formula: C4H4N2O2
Molecular Weight: 112.09
Percent Composition: C 42.86%, H 3.60%, N 24.99%, O 28.55%
Literature References: Obtained by hydrolysis of nucleic acids, cf. Levene, Bass, Nucleic Acids (New York, 1931). Alternate routes of formation: Johnson, J. Am. Chem. Soc. 63, 263 (1941); Fox, Harada, Science 133, 1923 (1961); Takemoto, Yamamoto, Synthesis 1971, 154. Several desmotropic forms. Crystal structure: Stewart, Acta Crystallogr. 23, 1102 (1967). Review: Ts'o "Bases, Nucleosides and Nucleotides" in Basic Principles in Nucleic Acid Chemistry vol. 1, P. O. P Ts'o, Ed. (Academic Press, New York, 1974) pp 453-584.
Properties: Needles from water, mp 335° with effervescence. uv max (pH 7.0): 202.5, 259.5 nm (e ′ 10-3 9.2, 8.2). Freely sol in hot water; sparingly in cold water (100 parts of water at 25° dissolves 0.358 part of uracil). Almost insol in alc, ether; sol in ammonia water and in other alkalies. pK = 9.45.
Melting point: mp 335° with effervescence
pKa: pK = 9.45
Absorption maximum: uv max (pH 7.0): 202.5, 259.5 nm (e ′ 10-3 9.2, 8.2)
Use: In biochemical research.