Molekula
4-Hydroxybenzaldehyde
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Hydroxybenzaldehyde is a white to pale yellow crystalline solid used in organic synthesis, pharmaceuticals, and as a fragrance intermediate. It is a versatile aromatic aldehyde with applications in dye and polymer production. It is also used as a flavoring agent and flavor adjuvant, and as a starting material in pharmaceutical manufacturing. Available in 1g, 10g, 50g, 100g, and 500g quantities. CAS: 123-08-0, Molecular formula: HOC6H4CHO, Molecular weight: 122.12 g/mol, Storage: Ambient, Signal word: Danger. Molekula supplies 4-Hydroxybenzaldehyde from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £60.40 per pack ex VAT · £72.48 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Light yellow powder |
| Melting Point | 115 - 118°C |
| Water | ≤ 0.5% |
| Heavy metals | ≤ 8ppm |
| Assay | ≥ 99.0% |
| Chlorine (Cl) | ≤ 50ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 174 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 117 °C |
| Boiling Point | 310 °C |
| Solubility (other solvents) | Slightly soluble in water; soluble in organic solvents |
| pKa | pKa = 7.61 (at 25 °C) |
Source: PubChem CID 126 (DrugBank, Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 10174308 |
| CAS Number | 123-08-0 |
| IUPAC Name | 4-hydroxybenzaldehyde |
| EC Number | 204-599-1 |
| Molecular Formula | HOC6H4CHO |
| Molecular Weight | 122.12 |
| Exact Mass | 122.0368 |
| SMILES | C1=CC(=CC=C1C=O)O |
| InChIKey | RGHHSNMVTDWUBI-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H6O2/c8-5-6-1-3-7(9)4-2-6/h1-5,9H |
| PubChem CID | 126 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2912491500 |
| Tariff Code | 2912490090 |
Safety & GHS
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Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H303 May be harmful if swallowed
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
- H402 Harmful to aquatic life
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P312 Call a POISON CENTER or doctor/physician if you feel unwell
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 4-Formylphenol
- Benzaldehyde, 4-hydroxy-
- Benzaldehyde, p-hydroxy-
- FEMA NO. 3984
- p-Formylphenol
- p-Hydroxybenzaldehyde
- p-Oxybenzaldehyde
- Parahydroxybenzaldehyde
- USAF M-6
Frequently asked questions
What is 4-Hydroxybenzaldehyde used for?
It is used as an intermediate in the synthesis of pharmaceuticals, dyes, and antioxidants.
What is the chemical formula and molecular weight of 4-Hydroxybenzaldehyde?
The formula is HOC6H4CHO and the molecular weight is 122.12 g/mol.
How should 4-Hydroxybenzaldehyde be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 4-Hydroxybenzaldehyde?
It is available in technical grade; custom grades may be requested.
Can Molekula supply 4-Hydroxybenzaldehyde in bulk?
Yes, bulk quantities are available upon request; please contact our sales team for details.
What documentation comes with an order of 4-Hydroxybenzaldehyde?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.