2,3,4,5,6-Pentafluorobenzaldehyde
2,3,4,5,6-Pentafluorobenzaldehyde (CAS: 653-37-2) is a fluorinated aromatic building block with the molecular formula C6F5CHO. It serves as a valuable intermediate in organic synthesis, particularly in the creation of advanced materials and in analytical chemistry. Its applications range from the development of high molecular weight fluorinated polymers through polyhydroxylation to its use as a derivatization reagent for sensitive amine analysis in environmental samples.
- Synonyms
- 5,6-PentafluorobenzaldehydeC6F5CHO

Synthesis of Fluorinated Polymers
Used in superacid-catalyzed polyhydroxylation reactions for the synthesis of novel, high molecular weight fluorinated aromatic polymers.
Analytical Derivatization Reagent
Employed as a derivatization reagent for the sensitive determination of primary amines in sewage sludge using headspace solid-phase microextraction and GC-MS.
Organic Synthesis Intermediate
A versatile building block in organic chemistry for introducing the pentafluorobenzoyl group into various molecular structures.
| Molecular weight | 196.07 |
|---|---|
| Linear formula | C6F5CHO |
| Assay | 98% |
| Boiling point | 164-166 °C(lit.) |
| Density | 1.588 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.45(lit.) |
| Application | 2,3,4,5,6-Pentafluorobenzaldehyde was used in the synthesis of novel, high molecular weight fluorinated aromatic polymers by superacid-catalyzed polyhydroxylation reaction of fluorinated carbonyl-containing compounds1. 2,3,4,5,6-Pentafluorobenzaldehyde was used as derivatization reagent in a study to develop a sensitive method for the determination of primary amines in sewage sludge by headspace solid-phase microextraction and gas chromatography-tandem mass spectrometry2. |
| Melting point | 24-28 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 77 °C / 170.6 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20-36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,3,4,5,6-Pentafluorobenzaldehyde used for?
+
It is used as a building block in organic synthesis, particularly for creating fluorinated polymers and as a derivatization reagent in analytical chemistry for detecting primary amines.
What is the CAS number and chemical formula for 2,3,4,5,6-Pentafluorobenzaldehyde?
+
The CAS number is 653-37-2, and the molecular formula is C6F5CHO.
What is the purity or grade of 2,3,4,5,6-Pentafluorobenzaldehyde supplied by TSS?
+
This chemical is supplied at a minimum assay of 98%.
What are the main hazards associated with 2,3,4,5,6-Pentafluorobenzaldehyde?
+
It is classified with Warning signal word, and hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), H332 (harmful if inhaled), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including dust masks, eyeshields, and gloves, should be used.
How is 2,3,4,5,6-Pentafluorobenzaldehyde packed and shipped?
+
It is typically packed in suitable containers for chemical transport and shipped according to relevant regulations, including UN 2810 classification for toxic solid, organic, n.o.s.
How can I request a quote for 2,3,4,5,6-Pentafluorobenzaldehyde?
+
To request a quote, please contact our sales team with the product name (2,3,4,5,6-Pentafluorobenzaldehyde), CAS number (653-37-2), and the required quantity.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis