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1.    Cyclopropylcarbonylmethylenetriphenylphosphorane

Cyclopropylcarbonylmethylenetriphenylphosphorane

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CAS 7691-76-1;white to off-white solid;pharmaceutical intermediate,used in Wittig reaction;calcipotriol(high potency API) intermediate
2.    5-Carboxypentyl triphenylphosphonium Bromide

5-Carboxypentyl triphenylphosphonium Bromide

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CAS 50889-29-7;white to off-white solid;NLT98.0%(HPLC Purity,a/a);pharmaceutical intermediate;used in Wittig reaction
3.    4-Carboxybutyl triphenylphosphonium Bromide

4-Carboxybutyl triphenylphosphonium Bromide

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CAS 17814-85-6;white to off-white solid;NLT98.0%(HPLC Purity,a/a);pharmaceutical intermediate, mainly for prostaglandin/PG alike APIs, eg.,bimaprost
4.    Butyl triphenyl phosphonium bromide

Butyl triphenyl phosphonium bromide

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CAS 1779-51-7;white to off-white solid;NLT98.0%(Assay titration);phosphonium salt;used in epoxy resins,powder coatings or fluoroelastomers; also as phase transfer catalyst/PTC
5.    Ethyl triphenyl phosphonium bromide

Ethyl triphenyl phosphonium bromide

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CAS 1530-32-1 white to off-white solid;NLT98.0%(Assay titration);phosphonium salt;used in epoxy resins,powder coatings or fluoroelastomers; also as phase transfer catalyst/PTC

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