Carboxylic Acid Anhydrides

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Carboxylic acid anhydride is an organic compound that has two acyl groups bonded to the same oxygen atom with its general formula being represented as (RC(O))2O. Depending upon the type of acyl groups present they can be either symmetrical or unsymmetrical. They are generally synthesized by addition-elimination reaction between carboxylic acid and an acid chloride in the presence of a base. They are widely used as acylating agents in chemical reactions. Moreover, some of the acid anhydrides have gained prominence for example maleic anhydride is a dienophile in the Diels-Alder reaction and is widely used as a precursor to various resins.

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308684 Trifluoroacetic acid, anhydride with trifluoromethanesulfonic acid technical grade, 90% C3F6O4S
252069 Chlorodifluoroacetic anhydride 98% C4Cl2F4O3
367710 Trichloroacetic anhydride technical grade, 95% C4Cl6O3
87265 Tetrafluorosuccinic anhydride ≥98.0% (T) C4F4O3
63200 Maleic anhydride puriss., ≥99.0% (NT) C4H2O3
215163 Chloroacetic anhydride 95% C4H4Cl2O3
284262 Iodoacetic anhydride C4H4I2O3
242845 Acetic anhydride ACS reagent, ≥98.0% C4H6O3
77292 Pentafluoropropionic anhydride purum, ≥97.0% (GC) C6F10O3
394904 Pentafluoropropionic anhydride for GC derivatization, LiChropur, 99% C6F10O3
252387 Pentafluoropropionic anhydride 99% C6F10O3
81942 Propionic anhydride purum, ≥96.0% (NT) C6H10O3
240311 Propionic anhydride ≥99% C6H10O3
P51478 Propionic anhydride 97% C6H10O3
318353 1-Cyclopentene-1,2-dicarboxylic anhydride 96% C7H6O3
H1006 Heptafluorobutyric anhydride ≥98% C8F14O3
394912 Heptafluorobutyric anhydride for GC derivatization, LiChropur, ≥99.0% C8F14O3
467707 3-Fluorophthalic anhydride 95% C8H3FO3
641375 4-Fluorophthalic anhydride 97% C8H3FO3
320064 Phthalic anhydride ACS reagent, ≥99% C8H4O3
125733 Phthalic anhydride ReagentPlus®, 99% C8H4O3
161330 Cyclobutane-1,2,3,4-tetracarboxylic dianhydride ≥94% C8H4O6
560278 5-Aminoisatoic anhydride C8H6N2O3
19270 Butyric anhydride purum, ≥97.0% (NT) C8H14O3
B103551 Butyric anhydride 98% C8H14O3
58390 Isobutyric anhydride purum, ≥98.0% (GC) C8H14O3
245771 Isobutyric anhydride 97% C8H14O3
14353 Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride ≥95.0% C9H8O3
235431 Methyl-5-norbornene-2,3-dicarboxylic anhydride 90% C10H10O3
471801 4-Pentenoic anhydride 98% C10H14O3
59855 Isovaleric anhydride ≥95.0% (GC) C10H18O3
143502 Trimethylacetic anhydride 99% C10H18O3
94550 Valeric anhydride purum, ≥98.0% (NT) C10H18O3
245933 Valeric anhydride 97% C10H18O3
341592 3-(tert-Butyldimethylsilyloxy)glutaric anhydride 99% C11H20O4Si
194530 Hexanoic anhydride 97% C12H22O3
21580 Hexanoic anhydride purum, ≥97.0% (GC) C12H22O3
385980 Benzoic anhydride ≥95% C14H10O3
681059 2-Methyl-6-nitrobenzoic anhydride 97% C16H12N2O7
44161 (2-Dodecen-1-yl)succinic anhydride technical C16H26O3
78265 2-Phenylbutyric acid anhydride purum, ≥98.0% (NT) C20H22O3
284688 Decanoic anhydride 96% C20H38O3
394580 Myristic anhydride 95% C28H54O3
286508 Palmitic anhydride 97% C32H62O3
75095 Oleic anhydride ≥95.0% (GC) C36H66O3