4-Chloro-5,6-dimethylthieno[2,3-d]pyrimidine
[CAS# 108831-68-1]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyrimidine compound >> Thiophene
• Name: 4-Chloro-5,6-dimethylthieno[2,3-d]pyrimidine
• Synonyms: NSC 153302
• Molecular Formula: C₈H₇ClN₂S
• Molecular Weight: 198.67
• CAS Registry Number: 108831-68-1
• EC Number: 691-897-3

Properties

• Solubility: Very slightly soluble (0.13 g/L) (25 °C), Calc.^*
• Density: 1.379±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 112-115 °C (methanol )^**

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

^** Jordis, Ulrich

Safety Data

• Hazard Symbols: Xn
• Risk Statements: R26;R36
• Safety Statements: S26

Hazard Classification

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