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Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

E400–E499 (thickeners, stabilizers, emulsifiers)

E420

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47841 D-Sorbitol analytical standard

E421

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PHR1007 Mannitol Pharmaceutical Secondary Standard; Certified Reference Material

E422

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PHR1020 Glycerin Pharmaceutical Secondary Standard; Certified Reference Material
77067 Glycerol analytical standard

E459

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1154569 Beta Cyclodextrin United States Pharmacopeia (USP) Reference Standard
PHR1439 Beta-Cyclodextrin Pharmaceutical Secondary Standard; Certified Reference Material

E490

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55417 1,2-Propanediol analytical reference material
12279 1,2-Propanediol analytical standard