SMILES:

C1CC2C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N2C1)CCCCN)CCCCN)CCCNC(=O)N)CC3=CC=C(C=C3)O)NC(=O)C(CC4=CC5=CC=CC=C5C=C4)NC(=O)C(CCCNC(=N)N)NC(=O)C(CCCNC(=N)N)NC(=O)C6=CC=C(C=C6)F)C(=O)NC(CCCNC(=N)N)C(=O)N)CCCNC(=O)N)CCCNC(=N)N)CC7=CC=C(C=C7)O
Motixafortide (BL-8040, BKT140) Chemical Structure
Chemical Structure
Check the Motixafortide (BL-8040, BKT140) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (3S,6S,9S,12S,15R,20R,23S,26S,29S,32S)-3,6-bis(4-aminobutyl)-N-[(2S)-1-amino-5-carbamimidamido-1-oxopentan-2-yl]-15-[[(2S)-2-[[(2S)-5-carbamimidamido-2-[[(2S)-5-carbamimidamido-2-[(4-fluorobenzoyl)amino]pentanoyl]amino]pentanoyl]amino]-3-naphthalen-2-ylpropanoyl]amino]-26-(3-carbamimidamidopropyl)-9,23-bis[3-(carbamoylamino)propyl]-12,29-bis[(4-hydroxyphenyl)methyl]-2,5,8,11,14,22,25,28,31-nonaoxo-17,18-dithia-1,4,7,10,13,21,24,27,30-nonazabicyclo[30.3.0]pentatriacontane-20-carboxamide
CAS Number 664334-36-5
Molecular Formula

C97H144FN33O19S2

Molecular Weight (MW) 2159.52
SMILES C1CC2C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N2C1)CCCCN)CCCCN)CCCNC(=O)N)CC3=CC=C(C=C3)O)NC(=O)C(CC4=CC5=CC=CC=C5C=C4)NC(=O)C(CCCNC(=N)N)NC(=O)C(CCCNC(=N)N)NC(=O)C6=CC=C(C=C6)F)C(=O)NC(CCCNC(=N)N)C(=O)N)CCCNC(=O)N)CCCNC(=N)N)CC7=CC=C(C=C7)O
InChIKey JJVZSYKFCOBILL-MKMRYRNGSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
Water 100 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).

Aliquotting Service

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