Trimethoprim

About This Item

Molecular Formula	C₁₄H₁₈N₄O₃
CAS Number	738-70-5

FC-0167757

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Properties

Chemical Identifiers

IUPAC Name	5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
SMILES	COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
InChI Key	IEDVJHCEMCRBQM-UHFFFAOYSA-N
InChI	InChI=1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)

Physical Properties

Boiling Point	405.2±55.0 °C at 760 mmHg
Melting Point	199-203 °C
Flash Point	198.8±31.5 °C
Density	1.3±0.1 g/cm3

Safety Information

Hazard Class

Danger

Flash Point

198.8±31.5 °C

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.