Learn More
Thermo Scientific Chemicals Paraformaldehyde, 4% in PBS
Description
Paraformaldehyde, 4% in PBS is used to preserve tissues for routine histology.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Paraformaldehyde, 4% in PBS is used to preserve tissues for routine histology.
Solubility
Miscible with water.
Notes
Store in a cool place. Incompatible with brass, steel, copper, acid anhydrides, strong oxidizing agents and strong reducing agents.

Specifications
Specifications
Physical Form | Liquid |
Quantity | 250 mL |
Solubility Information | Miscible with water. |
Chemical Name or Material | Paraformaldehyde |
Certificates
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
P15L510 | Certificate of Analysis | 10/03/2025 | J61899.AK,J61899.AP |
N25L500 | Certificate of Analysis | 10/03/2025 | J61899.AK,J61899.AP |
N14L527 | Certificate of Analysis | 13/02/2025 | J61899.AK,J61899.AP |
Z07K500 | Certificate of Analysis | 11/12/2024 | J61899.AK,J61899.AP |
Y23K500 | Certificate of Analysis | 02/12/2024 | J61899.AK,J61899.AP |
Safety and Handling



- Paraformaldehyde, 4% in PBS
- Danger
- Carcinogenicity Category 2
- Serious eye damage/eye irritation Category 1
- Skin sensitiser Category 1
- H317-May cause an allergic skin reaction.
- H318-Causes serious eye damage.
- H351-Suspected of causing cancer.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P302+P352-IF ON SKIN: Wash with plenty of water/.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P310-Immediately call a POISON CENTER/doctor/.
- MIXTURE LIST-Contains : paraformaldehyde, sodium chloride, phosphoric acid, potassium chloride
RUO – Research Use Only
Your input is important to us. Please complete this form to provide feedback related to the content on this product.