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 Product Overview
- IUPAC Name: 4-Methoxybenzaldehyde
- Aliases: para-Anisaldehyde, 4-Anisaldehyde, p-Methoxybenzaldehyde
- CAS No.: 123-11-5
- EINECS No.: 204-599-1
- Molecular Formula: C8H8O2
- Molecular Weight: 136.15
- Chemical Category: Aromatic aldehyde, flavor & fragrance raw material, pharmaceutical intermediate, fine chemical building block
- Core Features
Electron-rich para-methoxy benzaldehyde with prominent sweet hawthorn, vanilla and floral scent, outstanding fixation effect. Active aldehyde group enables Knoevenagel, aldol, Schiff-base formation and cyclization reactions. Widely used in edible & daily fragrances, drug synthesis, electroplating brighteners and UV absorber intermediates. Good compatibility with most perfume bases, stable under weak acid & neutral conditions.
2. Physical & Chemical Properties
2.1 Physical Indicators
- Appearance: Colorless to pale yellow clear oily liquid, crystallizes into white solid at low temperature
- Odor: Strong sweet hawthorn, vanilla floral aroma with subtle spicy undertones
- Solubility: Slightly soluble in water; fully miscible with ethanol, methanol, acetone, ethyl acetate, DPG, vegetable oils and perfume blends
- Boiling Point: 248 °C
- Melting Point: 0–2 °C
- Density (20°C): 1.123–1.127 g/cm3
- Refractive Index nD2?: 1.571–1.575
- Flash Point: 117 °C
- Hygroscopy: Non-hygroscopic
- UV absorption: Max peak at 277 nm
2.2 Chemical Characteristics
- Structure: Benzene ring with para-position -OCH? (electron-donating) and -CHO reactive aldehyde group
- Aldehyde reactivity: Condenses with amines to form Schiff bases; undergoes reduction, oxidation, cross-coupling and cyclization
- Ring activity: Methoxy group activates benzene ring for halogenation, nitration and electrophilic substitution
- Thermal stability: Stable below 180 °C; prolonged high heat causes self-polymerization
- pH tolerance: Stable in neutral & weak acid environments; polymerizes rapidly under strong alkaline heating
- Photostability: Darkens and forms polymeric impurities under long-term UV/air exposure; light-proof storage mandatory
- Compatibility: Compatible with polar solvents, essential oils and cosmetic raw materials; incompatible with concentrated strong alkali, strong oxidants
3. Main Application Fields
3.1 Flavor & Fragrance (Core Application)
- Daily fragrance: Key material for hawthorn, vanilla, floral, fruity and oriental accords; improves fragrance persistence and richness
- Edible flavor: Vanilla, caramel, berry flavor additive for candy, bakery, beverage and tobacco
- Household aromatics: Fragrance component for soap, body wash, laundry softener, scented candles and reed diffusers
3.2 Pharmaceutical Intermediates
Synthetic precursor for anti-inflammatory, antibacterial and anti-tumor small-molecule APIs; raw material for nitrogen-containing heterocyclic drugs via condensation cyclization.
3.3 Industrial Fine Chemicals
- Nickel electroplating brightener intermediate to enhance metal surface gloss
- Raw material for organic dyes, UV light stabilizers and liquid crystal monomers
3.4 Lab Reference Standard
Calibration standard for GC/HPLC analysis of aromatic aldehydes, organic synthesis reaction research reagent
4. Quality Specification
| Test Item | Standard Requirement |
| CAS Number | 123-11-5 |
| Molecular Formula | C8H8O2 |
| Molecular Weight | 136.15 |
| Appearance | Colorless to pale yellow transparent liquid |
| GC Purity | Fragrance Grade ≥98.0%; Pharma Grade ≥99.0% |
| Water Content (KF) | ≤0.10% |
| Acid Value | ≤1.0 mgKOH/g |
| Heavy Metals (Pb) | ≤10 ppm |
| Evaporation Residue | ≤0.05% |
| Bulk Packaging | 200L lined steel drum / IBC tote |
| Sample Packaging | 1L / 5L amber sealed glass bottle |
| Storage Condition | Sealed amber container, cool dry warehouse ≤25°C; avoid sunlight, high temperature and alkaline vapors |
| Transport Request | Light-proof airtight packaging for aromatic aldehyde liquid |
| Shelf Life | 24 months under intact sealed packaging |
...
Product
