Catalog No. Size PriceQuantity
M8004-2 Contact for quotation $100
M8004-10 Contact for quotation $100


AT6 is a PROTAC AT1 analogue, which is a highly selective bromodomain (Brd4) degrader.

Product information

CAS Number: 2098836-50-9

Molecular Weight: 1004.68

Formula: C48H58ClN9O7S3

Chemical Name: (2S, 4R)-1-[(2R)-3-({2-[2-(2-{2-[(9S)-7-(4-chlorophenyl)-4, 5, 13-trimethyl-3-thia-1, 8, 11, 12-tetraazatricyclo[, ]trideca-2(6), 4, 7, 10, 12-pentaen-9-yl]acetamido}ethoxy)ethoxy]ethyl}sulfanyl)-2-acetamido-3-methylbutanoyl]-4-hydroxy-N-{[4-(4-methyl-1, 3-thiazol-5-yl)phenyl]methyl}pyrrolidine-2-carboxamide

Smiles: CC(=O)N[C@H](C(=O)N1C[C@H](O)C[C@H]1C(=O)NCC1C=CC(=CC=1)C1SC=NC=1C)C(C)(C)SCCOCCOCCNC(=O)C[C@@H]1N=C(C2=C(SC(C)=C2C)N2C1=NN=C2C)C1C=CC(Cl)=CC=1


InChi: InChI=1S/C48H58ClN9O7S3/c1-27-29(3)68-47-40(27)41(33-12-14-35(49)15-13-33)54-37(44-56-55-30(4)58(44)47)23-39(61)50-16-17-64-18-19-65-20-21-67-48(6,7)43(53-31(5)59)46(63)57-25-36(60)22-38(57)45(62)51-24-32-8-10-34(11-9-32)42-28(2)52-26-66-42/h8-15,26,36-38,43,60H,16-25H2,1-7H3,(H,50,61)(H,51,62)(H,53,59)/t36-,37+,38+,43-/m1/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 100 mg/mL (99.53 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

PROTACs (proteolysis-targeting chimaeras) are bifunctional molecules that recruit a target protein in proximity to an E3 ubiquitin ligase to trigger protein degradation. Structural elucidation of the key ternary ligase: PROTAC: target species and how this impacts target degradation selectivity remains elusive. The ligand folds into itself to allow formation of specific intermolecular interactions in the ternary complex. Isothermal titration calorimetry studies, supported by surface mutagenesis and proximity assays, are consistent with pronounced cooperative formation of ternary complexes with Brd4BD2. Structure-based-designed compound AT1 exhibits highly selective depletion of Brd4 in cells.


  1. Gadd MS, et al. Structural basis of PROTAC cooperative recognition for selective protein degradation. Nat Chem Biol. 2017 May;13(5):514-521.

Products are for research use only. Not for human use.

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