![Structure of Sulfonium, [4-(1,1-dimethylethyl)phenyl]diphenyl-, salt with 2,2-difluoro-2-sulfo-1-(trifluoromethyl)ethyl 4-oxotricyclo[3.3.1.13,7]decane-1-carboxylate <span class="caps">CAS</span> 1162727-11-8 Structure of Sulfonium, [4-(1,1-dimethylethyl)phenyl]diphenyl-, salt with 2,2-difluoro-2-sulfo-1-(trifluoromethyl)ethyl 4-oxotricyclo[3.3.1.13,7]decane-1-carboxylate CAS 1162727-11-8](https://www.watson-int.com/wp-content/uploads/2026/06/Structure-of-Sulfonium-4-11-dimethylethylphenyldiphenyl-salt-with-22-difluoro-2-sulfo-1-trifluoromethylethyl-4-oxotricyclo3.3.1.137decane-1-carboxylate-CAS-1162727-11-8.jpg)
Identification
CAS Number
1162727-11-8
Name
Sulfonium, [4-(1,1-dimethylethyl)phenyl]diphenyl-, salt with 2,2-difluoro-2-sulfo-1-(trifluoromethyl)ethyl 4-oxotricyclo[3.3.1.13,7]decane-1-carboxylate (1:1)
Synonyms
(4-tert-butylphenyl)di(phenyl)sulfanium 1,1,3,3,3-pentafluoro-2-[(4-oxotricyclo[3.3.1.1~3,7~]decane-1-carbonyl)oxy]propane-1-sulfonate
[IUPAC name – generated by ACD/Name]
(4-tert-Butylphenyl)di(phenyl)sulfanium-1,1,3,3,3-pentafluor-2-[(4-oxotricyclo[3.3.1.1~3,7~]decan-1-carbonyl)oxy]propan-1-sulfonat
[German]
[IUPAC name – generated by ACD/Name]
1,1,3,3,3-pentafluoro-2-[(4-oxotricyclo[3.3.1.1~3,7~]décane-1-carbonyl)oxy]propane-1-sulfonate de (4-tert-butylphényl)di(phényl)sulfanium
[French]
[IUPAC name – generated by ACD/Name]
Unverified
(4-(tert-butyl)phenyl)diphenylsulfonium 1,1,3,3,3-pentafluoro-2-((4-oxoadamantane-1-carbonyl)oxy)propane-1-sulfonate
(4-tert-butylphenyl)-diphenyl-sulfonium 1,1,3,3,3-pentafluoro-2-(4-oxoadamantane-1-carbonyl)oxy-propane-1-sulfonate
(4-tert-butylphenyl)-diphenyl-sulfonium;1,1,3,3,3-pentafluoro-2-(4-oxoadamantane-1-carbonyl)oxy-propane-1-sulfonate
SMILES
CC(C)(C)c1ccc(S+c2ccccc2)cc1.O=C1C2CC3CC1CC(C(=O)OC(C(F)(F)F)C(F)(F)S(=O)(=O)[O-])(C3)C2
StdInChI
InChI=1S/C22H23S.C14H15F5O6S/c1-22(2,3)18-14-16-21(17-15-18)23(19-10-6-4-7-11-19)20-12-8-5-9-13-20;15-13(16,17)10(14(18,19)26(22,23)24)25-11(21)12-3-6-1-7(4-12)9(20)8(2-6)5-12/h4-17H,1-3H3;6-8,10H,1-5H2,(H,22,23,24)/q+1;/p-1
StdInChIKey
SLJCDCHXGUTEEZ-UHFFFAOYSA-M
Molecular Formula
C36H37F5O6S2
Molecular Weight
724.796
Properties
Appearance
White to off-white powder
Safety Data
Symbol
Signal Word
Warning
Hazard statements
H315-H319-H335Precautionary Statements
P261 ;P305+351+338 ;P302+352RIDADR
NONH for all modes of transport
Specifications and Other Information of Our Sulfonium, [4-(1,1-dimethylethyl)phenyl]diphenyl-, salt with 2,2-difluoro-2-sulfo-1-(trifluoromethyl)ethyl 4-oxotricyclo[3.3.1.13,7]decane-1-carboxylate (1:1) CAS 1162727-11-8
Identification Methods
HNMR, HPLC
Purity
99% min, 99.5% min
Total metal impurities
<100ppb, <50ppb
Shelf Life
2 years
Storage
Under room temperature away from light
Known Application
This product is primarily used as a photoacid generator (PAG) in chemically amplified photoresist systems for advanced semiconductor lithography. Upon UV or deep ultraviolet (DUV) exposure, it generates strong acids that catalyze deprotection reactions in photoresists, enabling high-resolution pattern formation and improved lithographic performance.
Typical applications include :
Semiconductor photoresist formulations
Integrated circuit (IC) manufacturing
DUV lithography processes
Microelectronic and nanofabrication technologies
Chemically amplified resist (CAR) systems
Advanced packaging and electronic materials
As a sulfonium salt-based PAG, it offers high acid generation efficiency, good thermal stability, and suitability for high-resolution lithographic patterning.
Links
This product is developed by our R&D company WatsonChem Advanced Chemical Materials (https://www.watsonchem.com/).
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