Molekula
2-Chloro-1-Methylpyridinium p-toluenesulfonate
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
2-Chloro-1-methylpyridinium p-toluenesulfonate is a quaternary ammonium salt widely used as a key reagent in organic synthesis, particularly as a condensing agent that activates carboxylic acids for ester, amide, lactone and peptide formation, and in the preparation of pyridine derivatives. It is also employed in pharmaceutical and agrochemical intermediate production due to its reactivity and selectivity. This chemical has a CAS number of 7403-46-5, with the molecular formula C13H14ClNO3S and a molecular weight of 299.77. It must be stored between 2 to 8°C, and it carries a Warning signal word for safety. Molekula supplies 2-Chloro-1-Methylpyridinium p-toluenesulfonate 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 | White to off-white solid |
| Purity (HPLC) | ≥98.0% |
| Water (KF) | ≤0.50% |
| Identification (1H-NMR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90037828 |
| CAS Number | 7403-46-5 |
| IUPAC Name | 2-chloro-1-methylpyridin-1-ium;4-methylbenzenesulfonate |
| Molecular Formula | C13H14ClNO3S |
| Molecular Weight | 299.77 |
| Exact Mass | 299.0383 |
| SMILES | CC1=CC=C(C=C1)S(=O)(=O)[O-].C[N+]1=CC=CC=C1Cl |
| InChIKey | KWNGIKVZXFFZNN-UHFFFAOYSA-M |
| InChI | InChI=1S/C7H8O3S.C6H7ClN/c1-6-2-4-7(5-3-6)11(8,9)10;1-8-5-3-2-4-6(8)7/h2-5H,1H3,(H,8,9,10);2-5H,1H3/q;+1/p-1 |
| PubChem CID | 10990220 |
| REACH Code | Y110 |
| HTS Code | 2933399999 |
| Tariff Code | 2933399999 |
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
- P302+352 IF ON SKIN: Wash with soap and water
- 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
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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
- 2-Chlor-1-methyl-pyridinium-p-toluolsulfonat
- 2-chloro-1-methylpyridin-1-ium 4-methylbenzene-1-sulfonate
- 2-Chloro-1-methylpyridin-1-ium 4-methylbenzenesulfonate
- 2-Chloro-1-methylpyridinium 4-methylbenzenesulfonate (1:1)
- 2-Chloro-1-methylpyridinium p-toluenosulfonate
Frequently asked questions
What is 2-Chloro-1-Methylpyridinium p-toluenesulfonate used for?
This compound is primarily used as a reagent in organic synthesis, particularly for the preparation of pyridine derivatives and in peptide chemistry.
What is the chemical formula and molecular weight of this product?
The chemical formula is C₁₃H₁₄ClNO₃S, and the molecular weight is 299.77 g/mol.
How should this product be stored?
Store at 2–8°C in a cool, dry place, away from direct sunlight and incompatible materials.
What grades or purities are available for this product?
Molekula supplies this product in analytical and synthesis-grade purity, typically ≥98% by HPLC or NMR.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options—please contact our sales team for minimum order quantities and pricing.
What documentation comes with an order of this product?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a batch-specific quality report.
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.