4-Hydroxymethyl-3-methoxyphenoxyacetic acid
4-Hydroxymethyl-3-methoxyphenoxyacetic acid (CAS: 83590-77-6) is a chemical compound with the formula C10H12O5 and a molecular weight of 212.20 g/mol. This molecule features both carboxylic acid and hydroxymethyl functional groups, making it valuable in chemical synthesis. It is primarily used as a linker and in chemical biology applications for creating complex molecular architectures and for conjugation.
- IUPAC
- HMPA

Chemical Synthesis Intermediate
Utilised as a building block in organic synthesis due to its distinct functional groups. It facilitates the introduction of specific structural motifs into target molecules, aiding in the creation of novel compounds.
Linker and Crosslinker
Its bifunctional nature makes it suitable for use as a linker or crosslinker in the development of more complex molecular structures. This is particularly relevant in areas like polymer chemistry and bioconjugation.
Chemical Biology Research
Employed in chemical biology for constructing probes or modified biomolecules. The compound can be incorporated into systems to study biological processes or to develop diagnostic tools.
| Molecular weight | 212.20 |
|---|---|
| Empirical formula | C10H12O5 |
| Assay | ≥97.0% |
| Melting point | ~95 °C (dec.) |



Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-37/38-41-50 |
| Safety statements (S) | 26-39-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Hydroxymethyl-3-methoxyphenoxyacetic acid used for?
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4-Hydroxymethyl-3-methoxyphenoxyacetic acid is used as an intermediate in chemical synthesis, as a linker and crosslinker, and in chemical biology research.
What are the CAS number and molecular formula for 4-Hydroxymethyl-3-methoxyphenoxyacetic acid?
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The CAS number is 83590-77-6, and the molecular formula is C10H12O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Hydroxymethyl-3-methoxyphenoxyacetic acid with an assay of ≥97.0%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
What are the main hazards associated with 4-Hydroxymethyl-3-methoxyphenoxyacetic acid?
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This compound is classified under GHS05, GHS07, and GHS09 symbols with a Danger signal word. It carries hazard statements including H302 (harmful if swallowed), H315 (causes skin irritation), H318 (causes serious eye damage), H335 (may cause respiratory irritation), and H400 (very toxic to aquatic life). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used.
How is 4-Hydroxymethyl-3-methoxyphenoxyacetic acid packed, shipped, and exported?
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4-Hydroxymethyl-3-methoxyphenoxyacetic acid is packed according to industry standards for safe transport and is exported globally by Tech Serve Solutions. Shipping classification is UN 3077, 9 / PGIII.
How can I request a sample or quote for 4-Hydroxymethyl-3-methoxyphenoxyacetic acid?
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To request a sample or quote, please contact our sales team through the website or by phone, providing the product name and CAS number (83590-77-6).
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