![Structure Sulfonium, triphenyl-, salt with 2,2,2-trifluoro-1-(sulfomethyl)ethyl tricyclo[3.3.1.13,7]decane-1-carboxylate <span class="caps">CAS</span> 1638216-03-1 Structure Sulfonium, triphenyl-, salt with 2,2,2-trifluoro-1-(sulfomethyl)ethyl tricyclo[3.3.1.13,7]decane-1-carboxylate CAS 1638216-03-1](https://www.watson-int.com/wp-content/uploads/2026/06/Structure-Sulfonium-triphenyl-salt-with-222-trifluoro-1-sulfomethylethyl-tricyclo3.3.1.137decane-1-carboxylate-CAS-1638216-03-1.jpg)
Identification
CAS Number
1638216-03-1
Name
Sulfonium, triphenyl-, salt with 2,2,2-trifluoro-1-(sulfomethyl)ethyl tricyclo[3.3.1.13,7]decane-1-carboxylate (1:1)
Synonyms
2-(adamantane-1-carbonyloxy)-3,3,3-trifluoro-propane-1-sulfonate;triphenylsulfonium
Triphenylsulfonium 2-((adamantane-1-carbonyl)oxy)-3,3,3-trifluoropropane-1-sulfonate
SMILES
O=C(OC(CS(=O)(=O)[O-])C(F)(F)F)C12CC3CC(CC(C3)C1)C2.c1ccc(S+c2ccccc2)cc1
StdInChI
InChI=1S/C18H15S.C14H19F3O5S/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;15-14(16,17)11(7-23(19,20)21)22-12(18)13-4-8-1-9(5-13)3-10(2-8)6-13/h1-15H;8-11H,1-7H2,(H,19,20,21)/q+1;/p-1
StdInChIKey
LWCJGPXPEOMYDB-UHFFFAOYSA-M
Molecular Formula
C32H33F3O5S2
Molecular Weight
618.725
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, triphenyl-, salt with 2,2,2-trifluoro-1-(sulfomethyl)ethyl tricyclo[3.3.1.13,7]decane-1-carboxylate (1:1) CAS 1638216-03-1
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/).
Quick Inquiry
Fill out our inquiry form and one of our experts will be in touch with you shortly.




![Structure of <span class="caps">PHOSPHINEOXIDE</span>,[2-[3,<span class="caps">5-BIS</span>[[(1,<span class="caps">1-DIMETHYLETHYL</span>)<span class="caps">DIMETHYLSILY</span>]<span class="caps">OXY</span>]-2-METHYLENECYCLOHEXYLIDENE]<span class="caps">ETHYL</span>]<span class="caps">DIPHENYL-</span>,[<span class="caps">3S-</span>(<span class="caps">1Z</span>,<span class="caps">3A</span>,<span class="caps">5B0</span>)] <span class="caps">CAS</span> 81522-68-1 Structure of PHOSPHINEOXIDE,[2-[3,5-BIS[[(1,1-DIMETHYLETHYL)DIMETHYLSILY]OXY]-2-METHYLENECYCLOHEXYLIDENE]ETHYL]DIPHENYL-,[3S-(1Z,3A,5B0)] CAS 81522-68-1](https://www.watson-int.com/wp-content/uploads/2018/11/Structure-of-PHOSPHINEOXIDE2-35-BIS11-DIMETHYLETHYLDIMETHYLSILYOXY-2-METHYLENECYCLOHEXYLIDENEETHYLDIPHENYL-3S-1Z3A5B0-CAS-81522-68-1.png)




