text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 2232-08-8 | Product Number: T1985


Purity: >98.0%(HPLC)(N)
  • 1-Tosylimidazole
Contact Us 2   15  
3   6   ≥20 

* Items in stock locally ship in 1-2 business days. Items from Japan stock are able to ship from a US warehouse within 2 weeks. Please contact TCI for lead times on items not in stock. Excludes regulated items and items that ship on ice.
* To send your quote request for bulk quantities, please click on the "Request Bulk Quote" button. Please note that we cannot offer bulk quantities for some products.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.

Product Number T1985
Purity / Analysis Method >98.0%(HPLC)(N)
Molecular Formula / Molecular Weight C__1__0H__1__0N__2O__2S = 222.26  
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 2232-08-8
Reaxys Registry Number 612451
PubChem Substance ID 87577678
MDL Number


Appearance White to Almost white powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(with Total Nitrogen) min. 98.0 %
Melting point 75.0 to 79.0 °C
Solubility in Methanol almost transparency
Properties (reference)
Melting Point 77 °C
Solubility (soluble in) Methanol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P302 + P352 : IF ON SKIN: Wash with plenty of soap and water.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
P362 : Take off contaminated clothing and wash before reuse.
Related Laws:
Transport Information:
HS Number 2933.29.4300
Esterification of Alcohols with Sodium Carboxylates

Experimental procedure: To a double-necked round bottom flask equipped with a condenser is added a mixture of alcohol (0.01 mol), TsIm (0.012 mol), TEA (0.015 mol), RCO2Na (0.02 mol) and a catalytic amount of TBAI (0.1 g) in DMF (30 mL). The mixture is refluxed until TLC monitoring indicates no further improvement in the conversion. The solvent is evaporated under vacuum and the remaining foam is dissolved in CHCl3 (100 mL) and subsequently washed with water (2 x 100 mL). The organic layer is dried (Na2SO4) and evaporated. The crude product is purified by column chromatography on silica gel eluting with a mixture of n-hexane/EtOAc to afford the desired ester.


PubMed Literature

Safety Data Sheet (SDS) Search
Please select Language.

The requested SDS is not available.

• Please check that the Product Number you have entered is correct.

• If your information is correct and you are still not able to view the requested SDS,  please Contact Us for more information.

C of A & Other Certificates
Please enter Lot Number Incorrect Lot Number is entered
Other Documents