4-Hydroxy-5,6-dimethylthieno[2,3-d]pyrimidine
[CAS# 18593-44-7]

Identification

• Name: 4-Hydroxy-5,6-dimethylthieno[2,3-d]pyrimidine
• Synonyms: 5,6-Dimethyl-1H-thieno[2,3-d]pyrimidin-4-one; 5,6-Dimethylthieno[2,3-d]pyrimidin-4-ol; ST 059935
• Molecular Formula: C₈H₈N₂OS
• Molecular Weight: 180.23
• CAS Registry Number: 18593-44-7
• EC Number: 817-994-4

Properties

• Solubility: Practically insoluble (0.031 g/L) (25 °C), Calc.^*
• Density: 1.45±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 269-270 °C (ethanol )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Al-Taisan, Khulud M.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335