Sigma-Aldrich
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Phosphonic/Phosphinic Acids




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Methylphosphonic acid purum, ≥98.0% (T) CH5O3P 64259pricing
Methylphosphonic acid 98% CH5O3P 289868pricing
(Aminomethyl)phosphonic acid ≥99% CH6NO3P A0539pricing
(Aminomethyl)phosphonic acid puriss., ≥99.0% (T) CH6NO3P 08385pricing
(Aminomethyl)phosphonic acid 99% CH6NO3P 324817pricing
Methylenediphosphonic acid ≥99% CH6O6P2 M9508pricing
Vinylphosphonic acid technical, ≥95% (T) C2H5O3P 95014pricing
Vinylphosphonic acid ≥90.0% (T) C2H5O3P 672068pricing
Phosphonoacetic acid 98% C2H5O5P 284270pricing
Dimethylphosphinic acid 97% C2H7O2P 328294pricing
Ethylphosphonic acid 98% C2H7O3P 289876pricing
2-Aminoethylphosphonic acid 99% C2H8NO3P 268674pricing
Etidronic acid 60% aqueous solution C2H8O7P2 H6773pricing
Iminodi(methylphosphonic acid) purum, ≥97.0% (T) C2H9NO6P2 56801pricing
Iminodi(methylphosphonic acid) 97% C2H9NO6P2 462314pricing
3-Phosphonopropionic acid technical grade, 94% C3H7O5P 228559pricing
Propylphosphonic acid 95% C3H9O3P 305685pricing
3-Aminopropylphosphonic acid 99% C3H10NO3P 268615pricing
Allylphosphonic acid monoammonium salt 95% C3H10NO3P 678007pricing
Nitrilotri(methylphosphonic acid) purum, ≥97.0% (T) C3H12NO9P3 72568pricing
Nitrilotris(methylene)triphosphonic acid solution 50 wt. % in H2O C3H12NO9P3 144797pricing
N,N-Bis(phosphonomethyl)glycine purum, ≥98.0% (T) C4H11NO8P2 15149pricing
tert-Butylphosphonic acid 98% C4H11O3P 305677pricing
N-(2-Hydroxyethyl)iminobis(methylphosphonic acid) solution technical, complexing agent, ~50% in H2O (~90%) C4H13NO7P2 55260pricing
N-(Phosphonomethyl)iminodiacetic acid hydrate 95% C5H10NO7P �� xH2O 477826pricing
Phenylphosphinic acid 99% C6H7O2P P28808pricing
Phenylphosphonic acid purum, ≥98.0% (T) C6H7O3P 78913pricing
6-Phosphonohexanoic acid 97% C6H13O5P 693839pricing
4-Aminobenzylphosphonic acid ~95% C7H10NO3P A5898pricing
1,8-Octanediphosphonic acid 97% C8H20O6P2 699888pricing
Diethylenetriaminepentakis(methylphosphonic acid) solution technical C9H28N3O15P5 36818pricing
Hexamethylenediamine-N,N,N′,N′-tetrakis(methylphosphonic acid) solution technical, ~25% in H2O (T) C10H28N2O12P4 52647pricing
Diphenylphosphinic acid purum, ≥98.0% (T) C12H11O2P 43153pricing
1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetrayl-tetrakis(methylphosphonic acid) purum, ≥97.0% (CHN) C12H32N4O12P4 86728pricing
Bis(4-methoxyphenyl)phosphinic acid 99% C14H15O4P 274607pricing
Diisooctylthiophosphinic acid technical, ~85% (T) C16H35OPS 38224pricing
Diisooctylphosphinic acid technical, ~90% (T) C16H35O2P 38223pricing
Diisooctyldithiophosphinic acid technical, ~85% (T) C16H35PS2 38221pricing
Bis(hexamethylene)triamine-pentakis(methylphosphonic acid) solution technical, ~50% in H2O C17H44N3O15P5 14847pricing