1,3,5-Trihydroxybenzene dihydrate
1,3,5-Trihydroxybenzene dihydrate (CAS 6099-90-7) is a crystalline organic compound with the molecular formula C6H3(OH)3 · 2H2O and a molecular weight of 162.14. Also known as Phloroglucinol dihydrate, it presents as a chemical reagent with applications in microscopy for decalcifying bone specimens and as a testing agent for pentoses, pentosans, and aldehydes. Its purity is typically around 97%.
- IUPAC
- Phloroglucinol dihydrate
- Synonyms
- 6099-90-7C6H3(OH)3 · 2H2OPhloroglucinol dihydrate

Microscopy Specimen Preparation
Used as a decalcifying agent in the preparation of bone specimens for microscopic examination. This process aids in the removal of calcium salts, allowing for better cellular visualization.
Analytical Reagent
Serves as a reagent for the detection and quantification of pentoses, pentosans, and aldehydes. Its specific reactivity makes it useful in various chemical assays.
Organic Synthesis Building Block
Functions as a versatile building block in organic synthesis. Its phenolic structure allows for various derivatizations in the creation of more complex molecules.
| Molecular weight | 162.14 |
|---|---|
| Linear formula | C6H3(OH)3 · 2H2O |
| Assay | 97% |
| Application | In microscopy as a decalcifier of bone specimens. Reagent for pentoses, pentosans and aldehydes. |
| Melting point | 218-221 °C (A)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | 100 °C / 212 °F |
| Water hazard class (WGK, DE) | 2 |
| Ignition residue | ≤0.05% (as SO4) |
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 1,3,5-Trihydroxybenzene dihydrate used for?
+
1,3,5-Trihydroxybenzene dihydrate is used as a decalcifier for bone specimens in microscopy and as a reagent for detecting pentoses, pentosans, and aldehydes. It also serves as a building block in organic synthesis.
What is the CAS number and formula for 1,3,5-Trihydroxybenzene dihydrate?
+
The CAS number is 6099-90-7 and the linear formula is C6H3(OH)3 · 2H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1,3,5-Trihydroxybenzene dihydrate with an assay of 97%. This product is supplied for research and laboratory use and is not represented as USP, BP, EP, or pharmacopoeia grade.
What are the safety considerations when handling 1,3,5-Trihydroxybenzene dihydrate?
+
Handling requires appropriate personal protective equipment, including eyeshields, gloves, and a type N95 respirator filter. It is classified under WGK 2 in Germany, indicating a hazard to water.
How is 1,3,5-Trihydroxybenzene dihydrate packed, shipped, and exported?
+
As a global supplier, Tech Serve Solutions offers comprehensive export services for 1,3,5-Trihydroxybenzene dihydrate, ensuring appropriate packaging and documentation for international shipment.
How can I request a quote or sample for 1,3,5-Trihydroxybenzene dihydrate?
+
To request a quote or sample, please contact our sales department via the website or direct inquiry. Our team will provide prompt assistance with your requirements.
▶ 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