CAS 56-04-2 | Methylthiouracil
Molecular Formula: C5H6N2OS
Molecular Weight: 142.18
EINECS: 200-252-3
Purity: 97% Min.
Package: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Product Introduction
Specification of CAS 56-04-2 | Methylthiouracil
ITEMS | SPECIFICATION |
Melting point | ~330 °C (dec.)(lit.) |
InChIKey | HWGBHCRJGXAGEU-UHFFFAOYSA-N |
storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
Merck | 14,6128 |
color | Clear colorless to yellow |
refractive index | 1.6430 |
form | Liquid |
EPA Substance Registry System | Methylthiouracil (56-04-2) |
Water Solubility | INSOLUBLE |
density | 1.291 |
Stability | Stability Incompatible with strong oxidizing agents, iodine, metals. |
pka | pKa 8.2 (Uncertain) |
IARC | 2B (Vol. Sup 7, 79) 2001 |
NIST Chemistry Reference | 6-Methyl-2-thiouracil(56-04-2) |
BRN | 115648 |
CAS DataBase Reference | 56-04-2(CAS DataBase Reference) |
Synthesis of CAS 56-04-2 | Methylthiouracil

Conditions
With potassium hydroxide In ethanol at 125℃; under 15514.9 Torr; for 0.416667h; Biginelli condensation; Microwave irradiation; Inert atmosphere;
Reference
Schmink, Jason R.; Kormos, Chad M.; Devine, William G.; Leadbeater, Nicholas E.
[Organic Process Research and Development, 2010, vol. 14, # 1, p. 205 - 214]
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