Tetrofosmin

• CAS: 127502-06-1
• Catalog Number: ACM127502061
• Category: Main Products
• Molecular Weight: 382.458
• Molecular Formula: C₁₈H₄₀O₄P₂
• Synonyms: Myoview;Unii-3J0kpb596q
• IUPAC Name: 2-[bis(2-ethoxyethyl)phosphanyl]ethyl-bis(2-ethoxyethyl)phosphane
• Canonical SMILES: CCOCCP(CCOCC)CCP(CCOCC)CCOCC
• InChI Key: QCWJONLQSHEGEJ-UHFFFAOYSA-N
• Boiling Point: 447.1ºC at 760mmHg
• Flash Point: 278.9ºC
• Exact Mass: 382.24000

Case Study

Technetium-99m Tetrofosmin Tracer for Myocardial Perfusion Imaging

D'Arceuil, et al. Reports in Medical Imaging, 2010, 3, 1-10.

Tetrofosmin, a bisphosphine complexed with technetium-99m, is utilized for imaging to detect myocardial ischemia, myocardial infarction, and evaluate left ventricular function. Technetium-99m tetrofosmin is a positively charged complex with tetrofosmin serving as the functionalized ligand.
Upon intravenous injection, technetium-99m tetrofosmin quickly gathers in the myocardium and various non-target organs such as the liver, kidney, spleen, and skeletal muscle. The initial pass extraction fraction in the myocardium is 0.45, with minimal clearance at three hours post-injection and a typical myocardial uptake of up to 1.2% of the injected dose. There is more rapid clearance of the tracer from the myocardial wall during periods of stress compared to rest, efficient clearance from the blood, and swift washout from non-target organs at peak exercise.
Furthermore, there is notable accumulation of technetium-99m tetrofosmin in skeletal muscle and increased retention of the agent during physical activity. Less than half of the administered contrast agent is excreted through the kidneys (around 40%) and intestines (approximately 34% and 25% at rest and during exercise, respectively) within 48 hours post-administration, regardless of activity level.
Myocardial perfusion imaging (MPI) using technetium-99m tetrofosmin is among the favored radionuclides for MPI. In clinical settings, it is a commonly used diagnostic agent for assessing left ventricular dysfunction and myocardial viability, employed both independently and in conjunction with modalities that measure myocardial metabolism.

Custom Q&A

What is the molecular formula of tetrofosmin?

The molecular formula of tetrofosmin is C18H40O4P2.

What is the molecular weight of tetrofosmin?

The molecular weight of tetrofosmin is 382.5 g/mol.

What is the IUPAC name of tetrofosmin?

The IUPAC name of tetrofosmin is 2-[bis(2-ethoxyethyl)phosphanyl]ethyl-bis(2-ethoxyethyl)phosphane.

What is the InChI of tetrofosmin?

The InChI of tetrofosmin is InChI=1S/C18H40O4P2/c1-5-19-9-13-23(14-10-20-6-2)17-18-24(15-11-21-7-3)16-12-22-8-4/h5-18H2,1-4H3.

What is the InChIKey of tetrofosmin?

The InChIKey of tetrofosmin is QCWJONLQSHEGEJ-UHFFFAOYSA-N.

What are the synonyms of tetrofosmin?

The synonyms of tetrofosmin are 127502-06-1, UNII-3J0KPB596Q, 3J0KPB596Q, and ethylenebis[bis(2-ethoxyethyl)phosphine].

What is the CAS number of tetrofosmin?

The CAS number of tetrofosmin is 127502-06-1.

What is the boiling point of tetrofosmin?

The boiling point of tetrofosmin is 100ºC.

How many rotatable bond counts are there in tetrofosmin?

There are 19 rotatable bond counts in tetrofosmin.

Is tetrofosmin a radiopharmaceutical?

Yes, tetrofosmin is used in conjunction with technetium Tc-99m as a radiopharmaceutical.