Melting point: |
233-234°C |
Boiling point: |
393.35°C (rough estimate) |
Density |
1.2171 (rough estimate) |
refractive index |
1.6110 (estimate) |
storage temp. |
Keep in dark place,Inert atmosphere,Room temperature |
solubility |
Prepare the solution immediately before use. Dissolve 0.25 g in a mixture of 1 volume of methanol R and 3 volumes of methylene chloride R and dilute to 10 mL with the same mixture of solvents. The solution is clear (2.2.1) and not more intensely coloured than reference solution BY6 (2.2.2, Method II). |
pka |
pKa 7(t=20.0) (Uncertain) |
form |
Solid |
color |
White to Off-White |
Water Solubility |
<0.01 g/100 mL at 21 ºC |
λmax |
276nm(lit.) |
Merck |
14,7985 |
BRN |
219864 |
BCS Class |
2 (CLogP), 4
(LogP),3 |
Stability: |
Stable, but light sensitive. Combustible. Incompatible with strong oxidizing agents. |
CAS DataBase Reference |
58-14-0(CAS DataBase Reference) |
IARC |
3 (Vol. 13, Sup 7) 1987 |
NIST Chemistry Reference |
Pyrimethamine(58-14-0) |
EPA Substance Registry System |
Pyrimethamine (58-14-0) |