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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 4546341Generated: October 23, 2026

2-Naphthyl Trifluoromethanesulfonate

2-Naphthyl triflate · 2-NAPHTHYL TRIFLUOROMETHANESULFONATE · 2-Naphthol trifluoromethanesulfonate · 2-NaphthylTrifluoromethanesulfonate>2-(Trifluoromethylsulfonyloxy)naphthalene · 2-naphthyltrifluoromethylsulfonylacidester · Trifluoromethanesulfonic acid 2-naphtyl ester · Trifluoromethanesulfonic Acid 2-Naphthyl Ester · Trifluoromethanesulfonic acid 2-naphthalenyl ester

https://huagongshe.com/en/chemical/4546341

2-Naphthyl Trifluoromethanesulfonate molecular structure

Identifiers & Physical Properties

CAS No.3857-83-8
Molecular formulaC11H7F3O3S
Average molar mass276.23 g/mol
Monoisotopic mass276.00679974 g/mol
SMILESO=S(=O)(Oc1ccc2ccccc2c1)C(F)(F)F
InChIKeyMDWRQYBWVTXIIJ-UHFFFAOYSA-N
PubChem CID4546341
EC No.624-190-5
DTXSIDDTXSID10404111

Chemical & Physical Properties

XLogP4.2
Topological polar surface area51.8
Hydrogen bond donors0
Hydrogen bond acceptors6
Rotatable bonds2
Heavy atoms18
Formal charge0
Complexity385
Melting point30-32 °C(lit.)
Boiling point87°C/0.2mmHg(lit.)
Density1.493±0.06 g/cm3(Predicted)
Flash point>230 °F
Storage conditionsSealed in dry,Room Temperature
Physical stateSolid
ColorWhite to orange
InChIInChI=1S/C11H7F3O3S/c12-11(13,14)18(15,16)17-10-6-5-8-3-1-2-4-9(8)7-10/h1-7H
InChIKeyMDWRQYBWVTXIIJ-UHFFFAOYSA-N
SMILESC(F)(F)(F)S(OC1=CC=C2C(=C1)C=CC=C2)(=O)=O
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS05
Signal wordDanger
GHS hazard statementsH314-H318
GHS precautionary statementsP280-P305+P351+P338-P310-P260h-P301+P330+P331-P303+P361+P353-P405-P501a
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard symbolsC
Risk statements (R)34
Safety statements (S)22-26-27-36/37/39-45
UN transport numberUN 3261 8/PG 2
Water hazard class (WGK)3
Hazard class8Eye Dam. 1Skin Corr. 1B
Customs code29049090
Storage class8A - Combustible corrosive hazardous materials

Safety & Regulations

GHS classificationDangerH314 (97.5%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 40 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Corr. 1B (97.5%)
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Water hazard class (WGK)3
UN transport numberUN 3261 8/PG 2
Customs code29049090
Risk statements (R)34
Signal wordDanger
GHS pictogramGHS05
Hazard symbolsC
Safety statements (S)22-26-27-36/37/39-45
Hazard class8Eye Dam. 1Skin Corr. 1B
Storage class8A - Combustible corrosive hazardous materials
GHS hazard statementsH314-H318
GHS precautionary statementsP280-P305+P351+P338-P310-P260h-P301+P330+P331-P303+P361+P353-P405-P501a

Applications & Uses

Uses

2-Naphthyl trifluoromethanesulfonate (2-naphthyl triflate) may be used as an arylating agent in the arylation of 1-(methoxycarbonyl)-2,5-dihydropyrrole by Heck reaction. It may be used as a substrate for coupling with Reformatsky reagent BrZnCH(CH3)(COOtC4H9) in the presence of “reduced” dichlorobis(1,1-diphenylphosphino)ferrocene catalyst.

General Description

2-Naphthyl trifluoromethanesulfonate (2-naphthyl triflate) is an aryl triflate. Its ruthenium-catalyzed conversion to 2-bromonaphthalene has been reported.