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Analytical & Chromatography
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![Benzo[b]naphtho[1,2-d]thiopheneBCR(R) certified Reference Material](https://www.scisale.com/media/catalog/product/S/i/Sigma_Aldrich_BCR137R10MG_Benzobnaphtho12dthiophene_original_1683933.png?optimize=medium&bg-color=255,255,255&fit=bounds&height=204&width=265&canvas=265:204)
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Benzyl alcoholpharmaceutical secondary standard; traceable to USP and PhEurPHR1019SIGPHR1019-1G-EA -
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L-Aspartic acidpharmaceutical secondary standard; traceable to USP and PhEurPHR1104SIGPHR1104-1G-EA -
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L-Cystine hydrochloride solution10 mM amino acid in 0.1 M HCl, analytical standard57579SIG57579-5ML-F-EA -
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