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636-26-0

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636-26-0 Structure

Identification	More
[Name] 4-Hydroxy-5-methyl-2-mercaptopyrimidine
[CAS] 636-26-0
[Synonyms] 4-HYDROXY-2-MERCAPTO-5-METHYLPYRIMIDINE 4-HYDROXY-5-METHYL-2-THIOPYRIMIDINE 5-METHYL-2-THIOURACIL 5-METHYL-2-THIOXO-1,3,5,6-TETRAHYDROPYRIMIDIN-4-ONE 2,3-dihydro-5-methyl-2-thioxo-4(1h)-pyrimidinon 2,3-dihydro-5-methyl-2-thioxo-4(1h)-pyrimidinone 2-thio-thymin 2-Thiothymine 5-Methyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone Thiothymine Thymine, 2-thio- Uracil, 5-methyl-2-thio- 4-Hydroxy-2-mercapto-5-methylpyrimidine~2-Thiothymine 4(1H)-Pyrimidinone, 2,3-dihydro-5-methyl-2-thioxo-(9CI) 5-METHYL-2-THIOURACIL 98+% 4(1H)-Pyrimidinone, 2,3-dihydro-5-methyl-2-thioxo- 4-Hydroxy-5-methyl-2-mercaptopyrimidine 4-Hydroxy-5-methylpyrimidine-2-thione 5-Methyl-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one 1,2-Dihydro-2-thioxo-5-methylpyrimidine-4(3H)-one
[Molecular Formula] C5H6N2OS
[MDL Number] MFCD00009777
[Molecular Weight] 142.18
[MOL File] 636-26-0.mol

Chemical Properties	Back Directory
[Appearance] white crystalline powder
[Melting point ] 283-286°C
[density ] 1.36
[refractive index ] 1.6430 (estimate)
[storage temp. ] Sealed in dry,Room Temperature
[form ] powder to crystal
[pka] pKa 7.71 (Uncertain)
[color ] White to Almost white
[Stability:] Stable but may be heat or light sensitive. Incompatible with strong oxidizing agents.
[Water Solubility ] 509mg/L(25 ºC)
[BRN ] 120488
[InChI] InChI=1S/C5H6N2OS/c1-3-2-6-5(9)7-4(3)8/h2H,1H3,(H2,6,7,8,9)
[InChIKey] ZLAQATDNGLKIEV-UHFFFAOYSA-N
[SMILES] C1(=S)NC=C(C)C(=O)N1
[CAS DataBase Reference] 636-26-0(CAS DataBase Reference)
[NIST Chemistry Reference] 4(1H)-pyrimidinone, 2,3-dihydro-5-methyl-2-thioxo-(636-26-0)
[EPA Substance Registry System] 636-26-0(EPA Substance)

Safety Data	Back Directory
[Hazard Codes ] Xi
[Risk Statements ] R22:Harmful if swallowed. R40:Limited evidence of a carcinogenic effect.
[Safety Statements ] S22:Do not breathe dust . S36/37:Wear suitable protective clothing and gloves .
[RTECS ] XP2108500
[TSCA ] TSCA listed
[HS Code ] 2933599590

Raw materials And Preparation Products	Back Directory
[Raw materials] Ethanol-->Hydrochloric acid-->Methanol-->Diethyl ether-->Acetic acid-->Sodium-->Toluene-->Sodium sulfate-->Acetone-->Sodium bicarbonate-->Triethyl orthoformate-->Thiourea-->ZINC-->Iodine-->Ethyl 2-bromopropionate
[Preparation Products] Thymine-->Pyrimidine, 5-methyl-4-[(trimethylsilyl)oxy]-2-[(trimethylsilyl)thio]-

Hazard Information	Back Directory
[General Description] White crystalline solid.
[Reactivity Profile] 5-METHYL-2-THIOURACIL(636-26-0) is heat sensitive and may be light sensitive.
[Air & Water Reactions] Insoluble in water.
[Fire Hazard] Flash point data for this compound are not available. 5-METHYL-2-THIOURACIL is probably combustible.
[Chemical Properties] white crystalline powder
[Uses] 4-Hydroxy-5-methyl-2-mercaptopyrimidine is used as antithyroid drug.

Spectrum Detail	Back Directory
[Spectrum Detail] 4-Hydroxy-5-methyl-2-mercaptopyrimidine(636-26-0)MS 4-Hydroxy-5-methyl-2-mercaptopyrimidine(636-26-0)¹HNMR 4-Hydroxy-5-methyl-2-mercaptopyrimidine(636-26-0)¹³CNMR 4-Hydroxy-5-methyl-2-mercaptopyrimidine(636-26-0)IR1 4-Hydroxy-5-methyl-2-mercaptopyrimidine(636-26-0)IR2

Well-known Reagent Company Product Information	Back Directory
[Alfa Aesar] 5-Methyl-2-thiouracil, 98%(636-26-0)
[Sigma Aldrich] 636-26-0(sigmaaldrich)
[TCI AMERICA] 5-Methyl-2-thiouracil,>98.0%(T)(636-26-0)

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