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Molekula

Molekula

Vanillin

SKU 61624662 CAS 121-33-5 4-(HO)C6H3-3-(OCH3)CHO MW 152.15 In stock Bulk quantities on request

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

Vanillin is a naturally occurring organic compound responsible for the characteristic flavor and aroma of vanilla. Widely used in food, beverages, cosmetics, and fragrances, it serves as a flavoring agent and scent enhancer. It also serves as a synthesis reagent and as a starting material in pharmaceutical manufacturing, notably for methyldopa and L-dopa, and is added as a flavoring to animal feeds. This chemical has a CAS number of 121-33-5, with the molecular formula 4-(HO)C6H3-3-(OCH3)CHO and a molecular weight of 152.15. It is stored at ambient temperatures and carries a signal word of "Warning" for safety. Molekula supplies Vanillin from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Pricing & pack sizes

Pack sizes & pricing

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.

  • 100 g — £45.10 per pack ex VAT · £54.12 inc. VAT

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Specifications

Property Value
Appearance White to slightly yellow crystals, usually needlelike
Melting Point 81.0°C to 83.0°C
Heavy metals ≤0.001%
Identification Conforms to reference
Loss on Drying ≤0.5%
Odour Sweet, milk and vanilla aroma
Solubility 25 °.C, 1g of Ethyl vanillin soluble in 2ml 95% ethanol, resultant solution should be clear
Assay ≥99.5%
Arsenic (As) ≤0.0003%

Storage & handling

Property Value
Storage Temperature Ambient
Flash Point 160 °C
Acidity Acid

Literature values

Published physical properties of the substance, not batch specifications.

Property Value
Appearance White or off-white nonhygroscopic crystalline powder
Odour Sweetish smell
Melting Point 81-83 °C
Boiling Point 285 °C
Water Solubility 11 g/L at 25 °C
Solubility (other solvents) Soluble in 125 parts water, 20 parts glycerin, 2 parts 95% alcohol, chloroform, ether
Vapour Pressure 1.18 × 10⁻⁴ mmHg at 25 °C
pKa pKa = 7.4
log P (octanol/water) 1.37

Source: PubChem CID 1183 (HSDB, ICSC)

Identification

Property Value
SKU 61624662
CAS Number 121-33-5
IUPAC Name 4-hydroxy-3-methoxybenzaldehyde
EC Number 204-465-2
Molecular Formula 4-(HO)C6H3-3-(OCH3)CHO
Molecular Weight 152.15
Exact Mass 152.0473
SMILES COC1=C(C=CC(=C1)C=O)O
InChIKey MWOOGOJBHIARFG-UHFFFAOYSA-N
InChI InChI=1S/C8H8O3/c1-11-8-4-6(5-9)2-3-7(8)10/h2-5,10H,1H3
PubChem CID 1183
REACH Code Y113
TSCA Listed Yes
HTS Code 2912.49.26.00
Tariff Code 2912490090

Safety & GHS

Warning
  • GHS pictogram — Health Hazard Health Hazard GHS07

Hazard statements

  • H302 Harmful if swallowed
  • H317 May cause an allergic skin reaction
  • H319 Causes serious eye irritation

Precautionary statements

  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
  • P302+352 IF ON SKIN: Wash with soap and water
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

Documents

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

  • 2-Methoxy-4-formylphenol
  • 3-Methoxy-4-hydroxybenzaldehyde
  • 4-Hydroxy-3-methoxybenzaldehyde
  • 4-Hydroxy-m-anisaldehyde
  • Benzaldehyde, 4-hydroxy-3-methoxy-
  • Lioxin
  • p-Vanillin
  • Vanillaldehyde
  • Vanillic aldehyde
  • Vanilline

Frequently asked questions

What is vanillin primarily used for?

Vanillin is widely used as a flavoring agent in food and beverages, such as ice cream, baked goods, and soft drinks, and as a fragrance in perfumes and cosmetics.

What is the chemical formula and molecular weight of vanillin?

The chemical formula is **4-(HO)C6H3-3-(OCH3)CHO**, and the molecular weight is **152.15 g/mol**.

How should vanillin be stored?

Store vanillin in a tightly sealed container at **ambient temperature**, away from direct sunlight and moisture.

What grades of vanillin does Molekula supply?

Molekula supplies **pharmaceutical-grade, food-grade, and industrial-grade vanillin**—confirm availability for your specific application.

Can Molekula supply vanillin in bulk quantities?

Yes, we offer vanillin in bulk, with flexible packaging options (drums, bags, or custom solutions) for large-scale orders.

What documentation comes with a vanillin order?

Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation** for traceability.

Ready to order or need a custom pack?

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