Are Triflic Anhydride and Trifluoromethanesulfonic Anhydride the same reagent?

Yes. Both names and the abbreviation Tf2O identify CAS 358-23-6. It is not Triflic Acid or a metal triflate salt. State the CAS number, assay basis and whether neat reagent or a specified solution is required in the inquiry.

Which batch data matter when purchasing Triflic Anhydride?

Agree assay and method, appearance, water, Triflic Acid and other hydrolysis or sulfur-containing impurities. Moisture rapidly changes the reagent, so the sample and commercial batch should be evaluated against the same specification, with the batch analysis linked to the offered lot.

What is Triflic Anhydride used for?

Tf2O is evaluated for triflylation, activation and related organic-synthesis steps where a highly reactive, moisture-sensitive electrophile is required. The intended transformation, solvent, temperature and material compatibility should be stated because the reagent is not a direct substitute for the acid or triflate salt.

What are the key physical properties of Triflic Anhydride?

Triflic Anhydride has molecular formula C2F6O5S2, molar mass about 282.14 g/mol, boiling point about 81-83 C and density about 1.677 g/mL at 25 C. Its melting point is around -80 C, and it is highly reactive toward water.

How should Triflic Anhydride be stored and handled?

Store under inert gas in tightly sealed, moisture-protected containers in a cool, well-ventilated area away from water, bases, oxidizers and incompatible solvents. Use dry equipment and appropriate PPE, and follow the current safety information for spill, fire and emergency response.

Triflic Anhydride (Tf2O) CAS 358-23-6

Triflic Anhydride (Tf2O), also called trifluoromethanesulfonic anhydride, is a sulfonic anhydride reagent identified by CAS 358-23-6. It may be evaluated for triflylation and organic-synthesis steps when the intended transformation and material compatibility are defined. For an RFQ, state the intended transformation, compatibility needs, required specification, quantity and destination.

CAS: 358-23-6
Synonyms: Triflic Anhydride; Trifluoromethanesulfonic Anhydride; Tf2O
Einecs: 206-616-8
Molecular Formula: C₂F₆O₅S₂
Grade: State the required product-specific specification for the intended process.
Package: State packaging and handling requirements for the product and destination.

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Product Description

Product name	Triflic Anhydride (Tf2O)
Synonyms	Triflic Anhydride; Trifluoromethanesulfonic Anhydride; Tf2O
CAS Number	358-23-6
Molecular formula	C₂F₆O₅S₂
Molar mass	282.14 g/mol

Physical-property requirements: confirm them against the current product-specific specification and applicable SDS.

It may be evaluated for triflylation and organic-synthesis steps when the intended transformation and material compatibility are defined.

Safety review: assess handling, storage and process controls against the applicable SDS and current product-specific specification.

FAQ - Technical & Supply Chain

Q:
Are Triflic Anhydride and Trifluoromethanesulfonic Anhydride the same reagent?

A: Yes. Both names and the abbreviation Tf2O identify CAS 358-23-6. It is not Triflic Acid or a metal triflate salt. State the CAS number, assay basis and whether neat reagent or a specified solution is required in the inquiry.
Q:
Which batch data matter when purchasing Triflic Anhydride?

A: Agree assay and method, appearance, water, Triflic Acid and other hydrolysis or sulfur-containing impurities. Moisture rapidly changes the reagent, so the sample and commercial batch should be evaluated against the same specification, with the batch analysis linked to the offered lot.
Q:
What is Triflic Anhydride used for?

A: Tf2O is evaluated for triflylation, activation and related organic-synthesis steps where a highly reactive, moisture-sensitive electrophile is required. The intended transformation, solvent, temperature and material compatibility should be stated because the reagent is not a direct substitute for the acid or triflate salt.
Q:
What are the key physical properties of Triflic Anhydride?

A: Triflic Anhydride has molecular formula C2F6O5S2, molar mass about 282.14 g/mol, boiling point about 81-83 C and density about 1.677 g/mL at 25 C. Its melting point is around -80 C, and it is highly reactive toward water.
Q:
How should Triflic Anhydride be stored and handled?

A: Store under inert gas in tightly sealed, moisture-protected containers in a cool, well-ventilated area away from water, bases, oxidizers and incompatible solvents. Use dry equipment and appropriate PPE, and follow the current safety information for spill, fire and emergency response.

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