PeptideDB

ATAC21 2101204-23-1

ATAC21 2101204-23-1

CAS No.: 2101204-23-1

ATAC21 is a linker immunostimulatory compound formed by conjugating a non-cleavable (non-degradable) maleimide-PEG4 link
Sales Email:peptidedb@qq.com

This product is for research use only, not for human use. We do not sell to patients.

ATAC21 is a linker immunostimulatory compound formed by conjugating a non-cleavable (non-degradable) maleimide-PEG4 linker containing a succinimide group to an immunostimulatory compound. ATAC21 can bind to SBT-040 (anti-CD40 antibody) to form a conjugate.

Physicochemical Properties


Molecular Formula C38H50N12O21P2
Molecular Weight 1072.81893014908
Exact Mass 1072.268
CAS # 2101204-23-1
PubChem CID 137196838
Appearance Typically exists as solid at room temperature
LogP -8.2
Hydrogen Bond Donor Count 8
Hydrogen Bond Acceptor Count 26
Rotatable Bond Count 21
Heavy Atom Count 73
Complexity 2140
Defined Atom Stereocenter Count 8
SMILES

C1[C@@H]2[C@H]([C@H]([C@@H](O2)N3C=NC4=C3N=C(NC4=O)N)O)OP(=O)(OC[C@@H]5[C@H]([C@H]([C@@H](O5)N6C=NC7=C(N=CN=C76)NC(=O)CCOCCOCCOCCOCCNC(=O)CCN8C(=O)C=CC8=O)O)OP(=O)(O1)O)O

InChi Key IMLWHYAMUXROKG-WWVXGGQVSA-N
InChi Code

InChI=1S/C38H50N12O21P2/c39-38-46-34-27(35(57)47-38)44-19-50(34)37-29(56)31-21(69-37)16-67-72(58,59)70-30-20(15-66-73(60,61)71-31)68-36(28(30)55)49-18-43-26-32(41-17-42-33(26)49)45-23(52)4-7-62-9-11-64-13-14-65-12-10-63-8-5-40-22(51)3-6-48-24(53)1-2-25(48)54/h1-2,17-21,28-31,36-37,55-56H,3-16H2,(H,40,51)(H,58,59)(H,60,61)(H3,39,46,47,57)(H,41,42,45,52)/t20-,21-,28-,29-,30-,31-,36-,37-/m1/s1
Chemical Name

N-[2-[2-[2-[2-[3-[[9-[(1S,6R,8R,9R,10S,15R,17R,18R)-17-(2-amino-6-oxo-1H-purin-9-yl)-3,9,12,18-tetrahydroxy-3,12-dioxo-2,4,7,11,13,16-hexaoxa-3λ5,12λ5-diphosphatricyclo[13.3.0.06,10]octadecan-8-yl]purin-6-yl]amino]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethyl]-3-(2,5-dioxopyrrol-1-yl)propanamide
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


ln Vitro A recombinant bispecific antibody would include: a) a target antigen binding domain that would specifically bind a tumor-associated antigen; b) an effector antigen binding domain that would specifically bind an antigen on an antigen-presenting cell, where the antigen is a molecule on an antigen-presenting cell; c) a domain that would contain Fc; d) an immunostimulatory compound that would be linked to a recombinant bispecific antibody using a linker; and where the same as the recombinant bispecific antibody [1].
References

[1]. Tumor targeting conjugates and methods of use thereof. WO2018140831A2.


Solubility Data


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 0.9321 mL 4.6606 mL 9.3212 mL
5 mM 0.1864 mL 0.9321 mL 1.8642 mL
10 mM 0.0932 mL 0.4661 mL 0.9321 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.