TAM558

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TAM558 is the payload molecule used in the synthesis/preparation of OMTX705. OMTX705 is a humanized anti-fibroblast activation protein (FAP) antibody that binds to the cytolysin TAM470 and has anti-tumor activity.

Physicochemical Properties

Molecular Formula C79H122N14O19S
Molecular Weight 1603.96139955521
Exact Mass 1602.873
CAS # 1802499-21-3
PubChem CID 118283862
Appearance White to off-white solid powder
LogP 6.9
Hydrogen Bond Donor Count 11
Hydrogen Bond Acceptor Count 22
Rotatable Bond Count 54
Heavy Atom Count 113
Complexity 2960
Defined Atom Stereocenter Count 9
SMILES [C@@H](C1SC=C(C(=O)N[C@H](C[C@H](C)C(=O)NNC(=O)OCCOCCOCCOCCNC(=O)OCC2C=CC(NC(=O)[C@H](CCCNC(=O)N)NC(=O)[C@H](C(C)C)NC(=O)CCCCCN3C(C=CC3=O)=O)=CC=2)CC2C=CC(O)=CC=2)N=1)(OCCC)C[C@H](C(C)C)N(CCC)C(=O)[C@]([H])([C@@H](C)CC)NC([C@H]1CCCCN1C)=O
InChi Key GJSOQVVIEZWQBH-FOJMMPRNSA-N
InChi Code InChI=1S/C79H122N14O19S/c1-11-35-92(76(103)69(53(8)13-3)88-73(101)62-21-16-18-36-91(62)10)63(51(4)5)48-64(110-38-12-2)75-86-61(50-113-75)72(100)84-58(47-55-25-29-59(94)30-26-55)46-54(9)70(98)89-90-79(106)111-45-44-109-43-42-108-41-40-107-39-34-82-78(105)112-49-56-23-27-57(28-24-56)83-71(99)60(20-19-33-81-77(80)104)85-74(102)68(52(6)7)87-65(95)22-15-14-17-37-93-66(96)31-32-67(93)97/h23-32,50-54,58,60,62-64,68-69,94H,11-22,33-49H2,1-10H3,(H,82,105)(H,83,99)(H,84,100)(H,85,102)(H,87,95)(H,88,101)(H,89,98)(H,90,106)(H3,80,81,104)/t53-,54-,58+,60-,62+,63+,64+,68-,69-/m0/s1
Chemical Name 2-[2-[2-[2-[[4-[[(2S)-5-(carbamoylamino)-2-[[(2S)-2-[6-(2,5-dioxopyrrol-1-yl)hexanoylamino]-3-methylbutanoyl]amino]pentanoyl]amino]phenyl]methoxycarbonylamino]ethoxy]ethoxy]ethoxy]ethyl N-[[(2S,4R)-5-(4-hydroxyphenyl)-2-methyl-4-[[2-[(1R,3R)-4-methyl-3-[[(2S,3S)-3-methyl-2-[[(2R)-1-methylpiperidine-2-carbonyl]amino]pentanoyl]-propylamino]-1-propoxypentyl]-1,3-thiazole-4-carbonyl]amino]pentanoyl]amino]carbamate
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: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
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 FAP[1]
References

[1]. OMTX705, a Novel FAP-Targeting ADC Demonstrates Activity in Chemotherapy and Pembrolizumab-Resistant Solid Tumor Models. Clin Cancer Res. 2020 Jul 1;26(13):3420-3430.

Solubility Data

Solubility (In Vitro) DMSO : 100 mg/mL (62.35 mM)
Solubility (In Vivo) Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300:Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)

Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 0.6235 mL 3.1173 mL 6.2346 mL
5 mM 0.1247 mL 0.6235 mL 1.2469 mL
10 mM 0.0623 mL 0.3117 mL 0.6235 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.
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3) Place us a purchaser order, we can send you a sales contract too if you need;
4) Start synthesis, and we will inform you the updates of synthesis in time;
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7) After-sale service: Contact us anytime if you have any problem when you use the peptides, and we will reply you as soon as possible.
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