Molecular Weight: 666.76 g/mol

Box5 Chemical Structure
Chemical Structure
Check the Box5 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

How to Prepare Stock Solution?

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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 100 mg/mL (149.97 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 100 mg/mL
Water 2 mg/mL
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-[[(2S)-2-[[(2R)-2-[[2-[[(2S)-2-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-sulfanylpropanoyl]amino]-4-carboxybutanoyl]amino]-4-methylpentanoic acid
CAS Number 881188-48-3
Molecular Formula

C25H42N6O11S2
Molecular Weight (MW) 666.76
SMILES CSCCC(N)C(=O)NC(CC(O)=O)C(=O)NCC(=O)NC(CS)C(=O)NC(CCC(O)=O)C(=O)NC(CC(C)C)C(O)=O
InChIKey LDLUXCDRSTVFKO-WOYTXXSLSA-N

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