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Thymine

Thymine / CAS : 65-71-4

Appearance Fine gray white crystalline powder UN 0
HS 2933599099 DG Class 0
Synonyms 5-Methyluracil; 2,4-Dihydroxy-5-Methylpyrimidine; Thymin; 5-Methylpyrimidine-2,4(1H,3H)-Dione; Thymine Anhydrate; 2,4(1H,3H)-Pyrimidinedione, 5-Methyl-; 5-Methyl-2,4(1H,3H)-Pyrimidinedione; 5-Methyl-1H-Pyrimidine-2,4-Dione; 5-Methyl-1,2,3,4-Tetrahydropyrimidine-2,4-Dione; 5-Methylpyrimidine-2,4-diol; 5-Methylpyrimidine-2,4-Dione; 4-Hydroxy-5-Methylpyrimidin-2(1H)-one; 5-Methyl-2,4-Dihydroxypyrimidine; Thymine-t; 5-Methyl Uracil; (3H)Methylthymidine; Methyl-3H Thymidine; 4(1H)-Pyrimidinone, 2-Hydroxy-5-Methyl-; 4(3H)-Pyrimidinone, 2-Hydroxy-5-Methyl-; 5-Methyl-2,4-Dioxypyrimidine; 2.6-Dioxy-5-Methyl-Pyrimidin; 2,4(1H,3H)-Pyrimidinedione, 5-Methyl-, Labeled with Tritium; 2,3H)-Pyrimidinedione, 5-Methyl-; Timina
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Properties

Summary

Formula
C5H6N2O2
Molecular Mass
126.11300
Exact Mass
126.04300
PSA
65.72000
Logp
-0.62840
IUPAC
5-methyl-1H-pyrimidine-2,4-dione
SMILES
CC1=CNC(=O)NC1=O

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates

Chemical and Physical Properties

Melting Point
316 °C
Density
1.226 g/cm3
Boiling Point
234.21°C (rough estimate)
Flash Point
198ºC
Appearance
Fine gray white crystalline powder

Export information

HS Code
2933599099
Export Rebate
13%
UN No.
0
DG-Class
0
Risk Code
R36/37/38
Safety Label
Xi

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