Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 4191-73-5 | MDL No. : | MFCD00016468 |
Formula : | C10H12O3 | Boiling Point : | - |
Linear Structure Formula : | HOC6H4COOC3H7 | InChI Key : | CMHMMKSPYOOVGI-UHFFFAOYSA-N |
M.W : | 180.20 | Pubchem ID : | 20161 |
Synonyms : |
Isopropylparaben
|
Chemical Name : | Isopropyl Paraben |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92.8% | With methanesulfonic acid; choline chloride;Reflux; | In the first step, 1 mol of choline chloride and 2 mol of methanesulfonic acid are added to the reaction vessel, and stirred at 80 C until fully dissolved to obtain a eutectic solvent;In the second step, after the reaction system is cooled to room temperature, 1 mol of p-hydroxybenzoic acid and 1.2 mol of isopropanol are added, the temperature is slowly raised, and the reaction is refluxed, and TLC is monitored until the end of the reaction;In the third step, the reaction solution is cooled to room temperature, a solid is precipitated, and suction filtration is carried out. The filter cake is washed with a small amount of water to obtain paraben ester, the yield is 92.8%, m.p. 101 to 104 C; and the filtrate is recovered to obtain a eutectic solvent. |
55% | With thionyl chloride; at 0℃;Reflux; Inert atmosphere; | General procedure: Thionyl chloride (1.16 g, 1.5 equiv) was added drop-wise to a solution of acid (1.0 g, 1.0 equiv) in the corresponding alcohol (15 ml) at 0&d eg;C. The solution was refluxed under a nitrogen atmosphere until all starting material was consumed (TLC monitoring). Then the solvent was removed under vacuo and the residue was purified by silica gel column chromatography eluting with ethyl acetate/n-hexane to afford the corresponding carboxylic esters. |