MC-DM1 is made up of linker MC and toxic molecule DM1, and may be utilized to prepare antibody-drug-conjugates/ADCss. DM1 (Mertansine), a thiol-containing maytansinoid alkaloid, is a potent microtubule disruptor.

Physicochemical Properties

Molecular Formula	C42H55CLN4O12
Molecular Weight	843.358711481094
Exact Mass	842.35
Elemental Analysis	C, 59.82; H, 6.57; Cl, 4.20; N, 6.64; O, 22.76
CAS #	1375089-56-7
PubChem CID	76072941
Appearance	White to off-white solid powder
LogP	2.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	12
Rotatable Bond Count	12
Heavy Atom Count	59
Complexity	1690
Defined Atom Stereocenter Count	8
SMILES	ClC1C(=CC2CC(C)=CC=C[C@H]([C@]3(C[C@@H]([C@@H](C)[C@H]4[C@](C)([C@H](CC(N(C)C=1C=2)=O)OC([C@H](C)N(C(CCCCCN1C(C=CC1=O)=O)=O)C)=O)O4)OC(N3)=O)O)OC)OC |c:7,9|
InChi Key	GBPANNIQRLRII-RJPAQOSPSA-N
InChi Code	InChI=1S/C42H55ClN4O12/c1-24-13-12-14-31(56-8)42(54)23-30(57-40(53)44-42)25(2)38-41(4,59-38)32(22-36(51)46(6)28-20-27(19-24)21-29(55-7)37(28)43)58-39(52)26(3)45(5)33(48)15-10-9-11-18-47-34(49)16-17-35(47)50/h12-14,16-17,20-21,25-26,30-32,38,54H,9-11,15,18-19,22-23H2,1-8H3,(H,44,53)/b14-12+,24-13+/t25-,26+,30+,31-,32+,38+,41+,42+/m1/s1
Chemical Name	(14S,16S,32S,33S,2R,4S,10E,12E,14R)-86-chloro-14-hydroxy-85,14-dimethoxy-33,2,7,10-tetramethyl-12,6-dioxo-7-aza-1(6,4)-oxazinana-3(2,3)-oxirana-8(1,3)-benzenacyclotetradecaphane-10,12-dien-4-yl N-(6-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanoyl)-N-methyl-L-alaninate
Synonyms	MC-DM1; MC DM1; MCDM1; Maytansine, N2′-deacetyl-N2′-[6-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-1-oxohexyl]-;
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 Note: This product requires protection from light (avoid light exposure) during transportation and storage.
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	Maytansinoids
References	[1]. Site-specific and hydrophilic ADCs through disulfide-bridged linker and branched PEG. Bioorg Med Chem Lett. 2018 May 1;28(8):1363-1370.

Solubility Data

Solubility (In Vitro)

DMSO : 220 mg/mL (260.86 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 5.5 mg/mL (6.52 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 55.0 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	1.1857 mL	5.9287 mL	11.8573 mL
	5 mM	0.2371 mL	1.1857 mL	2.3715 mL
	10 mM	0.1186 mL	0.5929 mL	1.1857 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.