Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: Vanillin
Alias: 4-Hydroxy-3-methoxybenzaldehyde
CAS No.: 121-33-5
Molecular Formula: C8H8O3
Molecular Weight: 152.15
2. Physical & Chemical Properties
Physical Properties
- Appearance: White to pale yellow crystalline powder
- Odor: Rich sweet vanilla milk fragrance
- Solubility: Slightly soluble in cold water, soluble in hot water, ethanol, methanol, acetone, ether, glycerin
- Melting Point: 81–83 ℃
- Boiling Point: 285 ℃
- Hygroscopy: Slightly hygroscopic under high humidity
- Crystal form: Needle crystal after recrystallization from water
- Sublimation: Sublimes slowly at moderate temperature
Chemical Properties
- Molecular structure: Aromatic aldehyde with hydroxyl and methoxy substituents on benzene ring
- Aldehyde characteristic: Silver mirror reaction, easy oxidation to vanillic acid under air and light
- Condensation reaction: Condenses with glyoxylic acid, amines, phenols to synthesize pharmaceutical and spice intermediates
- Esterification: Phenolic hydroxyl reacts with organic acids to form vanillin ester derivatives
- Acid-base stability: Stable in neutral and weak acid; reacts with strong alkali to generate soluble phenate salt
- Photodegradation: Long-term light exposure turns yellow, oxidation impurities increase
- Compatibility: Compatible with most food raw materials, cosmetic oils; incompatible with strong oxidants, concentrated alkali
3. Main Application Fields
1. Food & Beverage Flavor (Core Application)
- Universal food spice for cake, candy, chocolate, ice cream, dairy, beverage to enhance vanilla sweet aroma
- Flavor modifier to mask bitter taste in baked goods and snack food
2. Daily Chemical Fragrance
- Fragrance raw material for perfume, soap, shampoo, body wash, aromatherapy essential oil
- Fixative to stabilize and extend fragrance retention time
3. Pharmaceutical Intermediate
- Key raw material for synthesizing trimethoprim, levodopa and other APIs
- Raw material for cough-relieving, anti-inflammatory drug intermediates
4. Organic Synthetic Raw Material
Synthetic precursor of ethyl vanillin, vanillyl alcohol, heterocyclic fine chemicals
5. Analytical Reagent
Chromogenic reagent for detection of amino acids, tannins and metal ions
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 121-33-5 |
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.15 |
| Appearance | White pale yellow crystal powder |
| HPLC Purity | Food Grade ≥99.0%; Pharma Grade ≥99.5% |
| Melting Range | 81.0–83.0 ℃ |
| Moisture Content (KF) | ≤0.20% |
| Residue on Ignition | ≤0.05% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Bulk Package | 25kg PE lined fiber drum, light-proof packaging |
| Storage Condition | Hermetic light-proof cool dry warehouse ≤25℃; avoid direct sunlight |
| Transportation Rule | Food-grade spice solid, isolate odorous goods |
| Shelf Life | 24 months under intact sealed packaging |
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