Industrial Chemicals

Methyl Salicylate

Assay: 99.0% - 100.5%
Typical assay result: 99.75%
Relative density: 1.180 to 1.185
Refractive index: 1.535 to 1.538

Methyl Salicylate is the wintergreen ester used as a topical analgesic, a flavouring and a fragrance. The lot represented here assays 99.75% against a 99.0-100.5% specification, with acidity at 0.10 ML against a 0.4 ML max limit and heavy metals under 20 PPM. Those three numbers matter to different buyers: assay to the liniment formulator, acidity to the confectionery flavour house, heavy metals to anyone filing a food or pharmacopoeia dossier.

Why buyers specify this grade

Assay 99.0-100.5% with a typical result of 99.75%
Acidity 0.4 ML max on 0.1N NaOH per 5.0G, typically 0.10 ML
Heavy metals 0.002% (20 PPM) max, typically under 20 PPM
Relative density and refractive index both controlled to narrow bands, so identity testing passes first time
One ester covering pharmaceutical, food flavour, cosmetic and industrial solvent duty

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Specification

Assay	99.0% - 100.5% (result 99.75%)
Acidity, 0.1N NaOH per 5.0G	0.4 ML max (result 0.10)
Relative density	1.180 to 1.185 (result 1.182)
Refractive index	1.535 to 1.538 (result 1.537)
Heavy metals	0.002% (20 PPM) max (result under 20 PPM)

Technical data

Assay: 99.0% - 100.5%
Typical assay result: 99.75%
Relative density: 1.180 to 1.185
Refractive index: 1.535 to 1.538
Odour profile: Wintergreen, sweet and minty

Quality control

Released against the five analytical items above with the result reported next to each specification
TDS and MSDS issued with the order, sample COA on request

Where it is used

Topical analgesic in creams, balms and ointments
Anti-inflammatory and pain relief liniments and muscle rubs
Chest rubs for cold relief
Flavouring agent in chewing gum, candy, toothpaste and soft drinks
Mint-flavoured confectionery such as hard candies and cough drops
Fragrance in perfumes, lotions, creams, deodorants and aftershaves
Solvent in paints, varnishes and adhesives, and a synthesis feedstock

Who buys it

Topical pharmaceutical and OTC liniment manufacturers
Flavour and confectionery houses
Oral care and toothpaste formulators
Perfume and personal care manufacturers
Paint, varnish and adhesive formulators

Problems it solves

Free acidity in the ester souring a flavour or irritating a topical formulation, held to 0.4 ML max
Heavy metals blocking a food or pharmacopoeia filing, held under 20 PPM
Identity testing failing on density or refractive index because the lot sits outside the band
Buying separate flavour-grade and technical-grade esters when one controlled specification covers both

Packing and options

Packing format confirmed at quotation
Specify the end use, topical, flavour, fragrance or industrial, so the right documentation set is issued

How it compares

Technical-grade wintergreen esters are cheaper but leave acidity and heavy metals uncontrolled, which is exactly what a food or topical dossier asks about. This specification reports assay, acidity, density, refractive index and heavy metals together, so identity and purity testing on arrival is a formality rather than a risk.

Handling and storage

Store in tightly closed containers away from heat and direct light
Handle in ventilated conditions because the ester is volatile and strongly odorous
Check the reported acidity result against your own incoming limit before release to flavour production

FAQ

Methyl Salicylate questions buyers ask

What assay do you supply

The specification is 99.0% to 100.5% with a reported result of 99.75% on the lot shown.

What is the heavy metals limit

0.002%, that is 20 PPM maximum, with a reported result under 20 PPM.

Is it suitable for food flavouring

It is used as a flavouring agent in chewing gum, candy, toothpaste and soft drinks. Confirm your grade requirement at enquiry so the correct documentation is issued.

What is the refractive index and density

Refractive index 1.535 to 1.538 and relative density 1.180 to 1.185.

What does the acidity figure mean

Acidity measured with 0.1N NaOH on a 5.0G sample, limit 0.4 ML maximum, reported result 0.10 ML.

Can I get a sample before ordering

Yes, samples and a sample COA are available on request.

Download TDS, MSDS and sample COA