![Structure of Triphenylsulfonium salt with 1-(tricyclo[3.3.1.13,7]dec-1-ylmethyl) 2,2-difluoro-2-sulfoacetate (11) <span class="caps">CAS</span> 1022939-88-3 Structure of Triphenylsulfonium salt with 1-(tricyclo[3.3.1.13,7]dec-1-ylmethyl) 2,2-difluoro-2-sulfoacetate (11) CAS 1022939-88-3](https://www.watson-int.com/wp-content/uploads/2026/02/Structure-of-Triphenylsulfonium-salt-with-1-tricyclo3.3.1.137dec-1-ylmethyl-22-difluoro-2-sulfoacetate-11-CAS-1022939-88-3.png)
Identification
CAS Number
1022939-88-3
Name
Triphenylsulfonium salt with 1-(tricyclo[3.3.1.13,7]dec-1-ylmethyl) 2,2-difluoro-2-sulfoacetate (1:1)
Synonyms
triphenylsulfonium ((1-adamantyl)methoxycarbonyl)difluoromethanesulfonate
triphenylsulfonium (adamantane-1-ylmethyl)oxycarbonyldifluoromethanesulfonate
SMILES
C1C2CC3CC1CC(C2)(C3)COC(=O)C(F)(F)S(=O)(=O)[O-].C1=CC=C(C=C1)[S+](C2=CC=CC=C2)C3=CC=CC=C3
StdInChI
InChI=1S/C18H15S.C13H18F2O5S/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;14-13(15,21(17,18)19)11(16)20-7-12-4-8-1-9(5-12)3-10(2-8)6-12/h1-15H;8-10H,1-7H2,(H,17,18,19)/q+1;/p-1
StdInChIKey
OPUSNKQMMLRYMS-UHFFFAOYSA-M
Molecular Formula
C31H32F2O5S2
Molecular Weight
586.7
Properties
Appearance
White to off-white powder
Safety Data
RIDADR
NONH for all modes of transport
Specifications and Other Information of Our Triphenylsulfonium salt with 1-(tricyclo[3.3.1.13,7]dec-1-ylmethyl) 2,2-difluoro-2-sulfoacetate (1:1) CAS 1022939-88-3
Identification Methods
HNMR, HPLC
Purity
99% min, 99.5% min
Total Heavy Metals Impurities
<100ppb,<50ppb
Shelf Life
2 years
Storage
Under room temperature away from light
Known Application
I. Core Function : Photoacid Generator (PAG)
This compound is a triphenylsulfonium salt-based photoacid generator (PAG). Under UV or deep-UV (DUV) irradiation :
It absorbs light and undergoes photolytic cleavage
Produces a strong acid (difluoromethanesulfonic acid)
The generated acid can catalyze chemically amplified reactions or initiate subsequent cationic polymerization. It is a key functional additive in photoresist and cationic photopolymer curing systems.
II. Main Application Areas
1.Semiconductor Photoresists (Chemically Amplified Photoresists, CARs)
Applicable to :
i-line, KrF, and ArF lithography systems
High-resolution chemically amplified photoresists
Main functions :
Acid generation upon exposure
Catalyzes deprotection reactions
Amplifies exposure effects → improves resolution, sensitivity, and critical dimension / line edge roughness (CD/LER) control
Advantages of the adamantyl structure :
Provides high thermal stability
Reduces acid diffusion → improves resolution and line edge roughness
Enhances optical performance and formulation stability of photoresists
- Cationic Photocuring Systems
Used in UV-induced cationic curing of epoxy resins and vinyl ether materials
UV irradiation → acid generation → initiates cationic ring-opening polymerization or crosslinking
Applications include :
UV-curable coatings and inks
Electronic encapsulation materials
Photo-patternable insulating layers (e.g., PSPI, PI)
Links
This product is developed by our R&D company WatsonChem Advanced Chemical Materials (https://www.watsonchem.com/).
Quick Inquiry
Fill out our inquiry form and one of our experts will be in touch with you shortly.





![Structure of 4-Chloro-7-tosyl-7H-pyrrolo[2,3-d]pyrimidine <span class="caps">CAS</span> 479633-63-1 Structure of 4-Chloro-7-tosyl-7H-pyrrolo[2,3-d]pyrimidine CAS 479633-63-1](https://www.watson-int.com/wp-content/uploads/2014/12/Structure-of-4-Chloro-7-tosyl-7H-pyrrolo23-dpyrimidine-CAS-479633-63-1.png)


![Structure of 1,2,3,4-tetrahydro-benzo[h]quinolin-3-ol hydrochloride <span class="caps">CAS</span> 73579-26-7 Structure of 1,2,3,4-tetrahydro-benzo[h]quinolin-3-ol hydrochloride CAS 73579-26-7](https://www.watson-int.com/wp-content/uploads/2024/06/Structure-of-1234-tetrahydro-benzohquinolin-3-ol-hydrochloride-CAS-73579-26-7.png)