SPDMV is a cleavable (degradable) ADC (Antibody-drug conjugate) linker that may be utilized to prepare antibody-conjugated active molecules (ADC).

Physicochemical Properties

Molecular Formula	C15H18N2O4S2
Molecular Weight	354.444421291351
Exact Mass	354.07
CAS #	890409-85-5
PubChem CID	57901154
Appearance	White to off-white solid powder
LogP	1.6
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	8
Heavy Atom Count	23
Complexity	454
Defined Atom Stereocenter Count	0
SMILES	O=C(CCC(C)(C)SSC1C=CC=CN=1)ON1C(=O)CCC1=O
InChi Key	GOJXFKVHNIGABU-UHFFFAOYSA-N
InChi Code	InChI=1S/C15H18N2O4S2/c1-15(2,23-22-11-5-3-4-10-16-11)9-8-14(20)21-17-12(18)6-7-13(17)19/h3-5,10H,6-9H2,1-2H3
Chemical Name	(2,5-dioxopyrrolidin-1-yl) 4-methyl-4-(pyridin-2-yldisulfanyl)pentanoate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Targets	Disulfide Cleavable Linker
References	[1]. Bicyclic peptide-toxin conjugates specific for mt1-mmp. WO2017191460A1.

Solubility Data

Solubility (In Vitro)

DMSO : 100 mg/mL (282.14 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (7.05 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (7.05 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (7.05 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.8214 mL	14.1068 mL	28.2135 mL
	5 mM	0.5643 mL	2.8214 mL	5.6427 mL
	10 mM	0.2821 mL	1.4107 mL	2.8214 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.