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Analytical & Chromatography
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![2-Nitro-7-methoxynaphtho[2,1-b]furanBCR(R) certified Reference Material](https://scis.nroge.redpernix.com/media/catalog/product/cache/18c147254acb4a98c031bfc3f794e0d9/S/i/Sigma_Aldrich_BCR31210MG_2Nitro7methoxynaphtho21bfuran_original_1277210.png)
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2-Phenoxyethanolpharmaceutical secondary standard; traceable to USP and PhEurPHR1121SIGPHR1121-1.5G-EA -
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2-Propanol System SuitabilityUnited States Pharmacopeia (USP) Reference Standard1570439SIG1570439-3X1ML-EA
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2-tert-Butyl-4-hydroxyanisoleUnited States Pharmacopeia (USP) Reference Standard1083008SIG1083008-200MG-EA
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2E,4E-Hexadienoic acid isobutylamideUnited States Pharmacopeia (USP) Reference Standard1305507SIG1305507-25MG-EA
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3-Acetyl-11-keto-beta-boswellic acidUnited States Pharmacopeia (USP) Reference Standard1076261SIG1076261-20MG-EA
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3-Amino-2,4,6-triiodobenzoic acidUnited States Pharmacopeia (USP) Reference Standard1026605SIG1026605-50MG-EA
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3-tert-Butyl-4-hydroxyanisolepharmaceutical secondary standard; traceable to USPPHR1306SIGPHR1306-500MG-EA -
3-tert-Butyl-4-hydroxyanisoleUnited States Pharmacopeia (USP) Reference Standard1083100SIG1083100-200MG-EA -
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4'-Acetoxyacetanilide (Acetaminophen RCA)pharmaceutical secondary standard; traceable to USPPHR1612SIGPHR1612-50MG-EA
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4'-Isobutylacetophenonepharmaceutical secondary standard; traceable to USPPHR1146SIGPHR1146-500MG-EA
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4,4'-(2-Pyridinylmethylene)bisphenolUnited States Pharmacopeia (USP) Reference Standard1074030SIG1074030-20MG-EA
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4,4-Pentamethylene-2-pyrrolidinonepharmaceutical secondard standard; traceable to USP and PhEurPHR1322SIGPHR1322-100MG-EA -
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4-Amino-6-chloro-1,3-benzendisulfonamidepharmaceutical secondary standard; traceable to USPPHR1192SIGPHR1192-500MG-EA -
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4-Aminobenzoylglutamic acidUnited States Pharmacopeia (USP) Reference Standard1019870SIG1019870-50MG-EA
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4-Aminophenol (Acetaminophen RCK)pharmaceutical secondary standard; traceable to USPPHR1148SIGPHR1148-1G-EA
