"Phenylenediamine" CNS Standards List |
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CNS 9517
2020 Edition Chemical Reagent (O-Phenylenediamine) 化學試藥(鄰苯二胺) |
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CNS 9411
2020 Edition Chemical Reagent (P - Phenylenediamine) 化學試藥(對苯二胺) |
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