1,3-Diiminoisoindoline ≥97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,3-Diiminoisoindoline,97% (1,3-Isoindolinediimine; Phthalimide diimide)

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1,3-Dihydroxynaphthalene ≥99.00%, crystalline, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,3-Dihydroxynaphthalene is a dye intermediate forming stable colors when applied with particular mordants and in mixtures with other oxidising dyes. This specific reagent is intended for the quantitative colorimetric determination of alduronic acids, such as glucuronic acid from urine. The mutagenicity of ozonation derivatives of 1,3-dihydroxynaphthalene against several Salmonella typhimurium strains has been studied.

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1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

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1,3-Dihydroxynaphthalene ≥99%

Supplier: VWR Chemicals

1,3-Dihydroxynaphthalene ≥99%

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(±)-1,3-Butanediol ≥99.5%, GPR RECTAPUR®

Supplier: VWR Chemicals

(±)-1,3-Butanediol ≥99.5%, GPR RECTAPUR®

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1,3-Propanediol ≥99.7%, GPR RECTAPUR® for synthesis

Supplier: VWR Chemicals

1,3-Propanediol ≥99.7%, GPR RECTAPUR® for synthesis

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1,3-Dioxolane ≥99.0% stabilised, GPR RECTAPUR® for synthesis

Supplier: VWR Chemicals

1,3-Dioxolane ≥99.0% stabilised, GPR RECTAPUR® for synthesis

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1,3-Dimethyl-2-imidazolidinone ≥99.5%, PESTINORM® for headspace gas chromatography

Supplier: VWR Chemicals

1,3-Dimethyl-2-imidazolidinone ≥99.5%, PESTINORM® for headspace gas chromatography

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1,3-Dimethyl-2-imidazolidinone ≥99%, GPR RECTAPUR®

Supplier: VWR Chemicals

1,3-Dimethyl-2-imidazolidinone ≥99%, GPR RECTAPUR®

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1,3-Dimethylbarbituric acid ≥98.5%, GPR RECTAPUR®

Supplier: VWR Chemicals

1,3-Dimethylbarbituric acid ≥98.5%, GPR RECTAPUR®

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4-Formylbenzene-1,3-disulphonic acid disodium salt hydrate 97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate,97% (Benzaldehyde 2,4-disulfonic acid disodium salt; Sodium 4-formylbenzene-1,3-disulfonate).