Molecular Weight: 458.49 g/mol

Raltitrexed Chemical Structure
Chemical Structure
Check the Raltitrexed product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 92 mg/mL (200.65 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

Chemical Information

IUPAC Name (2S)-2-[[5-[methyl-[(2-methyl-4-oxo-3H-quinazolin-6-yl)methyl]amino]thiophene-2-carbonyl]amino]pentanedioic acid
CAS Number 112887-68-0
Molecular Formula

C21H22N4O6S
Molecular Weight (MW) 458.49
SMILES CC1=NC2=C(C=C(C=C2)CN(C)C3=CC=C(S3)C(=O)NC(CCC(=O)O)C(=O)O)C(=O)N1
InChIKey IVTVGDXNLFLDRM-HNNXBMFYSA-N

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Note: Technical data last updated: Sep 1, 2026.