Molekula
3,4,5-Trimethoxybenzaldehyde
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
3,4,5-Trimethoxybenzaldehyde is an aromatic aldehyde with three methoxy groups and a formyl substituent, widely used as a synthetic intermediate in pharmaceuticals, agrochemicals, and fragrance production due to its reactivity and stability. This white crystalline solid has a CAS number of 86-81-7, a molecular formula of (CH3O)3C6H2CHO, and a molecular weight of 196.20 g/mol. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies 3,4,5-Trimethoxybenzaldehyde 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | Yellow or light brown flake crystal |
| Melting Point | 73 - 76 Deg C |
| Loss on Drying | <1% |
| Assay | 99% min |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.00113 mmHg |
Source: PubChem CID 6858 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 42154644 |
| CAS Number | 86-81-7 |
| IUPAC Name | 3,4,5-trimethoxybenzaldehyde |
| EC Number | 201-701-6 |
| Molecular Formula | (CH3O)3C6H2CHO |
| Molecular Weight | 196.20 |
| Exact Mass | 196.0736 |
| SMILES | COC1=CC(=CC(=C1OC)OC)C=O |
| InChIKey | OPHQOIGEOHXOGX-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H12O4/c1-12-8-4-7(6-11)5-9(13-2)10(8)14-3/h4-6H,1-3H3 |
| PubChem CID | 6858 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29124900 |
| Tariff Code | 2912490090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
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
- 3,4,5-Trimethoxy-benzaldehyde; NSC 16692;
- 3,4,5-Trimethoxybenzaldehyde(Discontinued,See C4X-180322)
- 3,5-Trimethoxybenzaldehyde
- Benzaldehyde, 3,4,5-trimethoxy-
- Trimethoprim Intermediates
Frequently asked questions
What is 3,4,5-Trimethoxybenzaldehyde commonly used for?
It is primarily used as a key intermediate in the synthesis of pharmaceuticals, notably the antibacterial agent trimethoprim, as well as agrochemicals and fine chemicals like vanillin derivatives.
What is the molecular formula and molecular weight of 3,4,5-Trimethoxybenzaldehyde?
The molecular formula is (CH3O)3C6H2CHO, and the molecular weight is 196.20 g/mol.
How should 3,4,5-Trimethoxybenzaldehyde be stored?
Store it at ambient temperature in a tightly sealed container, away from moisture and direct sunlight.
What purity grades are available for this product?
Molekula supplies it in technical grade (95%+ purity) and pharmaceutical/analytical grade (98%+ purity).
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options (e.g., 1 kg, 5 kg, and 25 kg drums) for large-scale applications.
What documentation is provided with an order of 3,4,5-Trimethoxybenzaldehyde?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.