23053 Results for: "Sampling+Systems&pageNo=13"

Supplier: Merck

1,3-Dihydroxynaphthalene, Supelco®

Supplier: Merck

(±)-1,3-Butanediol for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Diethylbenzene, Supelco®

Supplier: Merck

1,3-Diaminopropane for synthesis, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: Merck

1,3-Dimethylurea, Sigma-Aldrich®

Supplier: Merck

1,3-Indandione for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Diphenylguanidine, Supelco®

Supplier: Merck

1,3-Propanediol for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Dihydroxyacetone for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Dibromopropane for synthesis, Sigma-Aldrich®

Supplier: Merck

2-(2-Nitroethyl)-1,3-dioxolane for synthesis

Supplier: Merck

1,3-Dimethyl-2-imidazolidinone, Sigma-Aldrich®

Supplier: Merck

Hexachloro-1,3-butadiene

Supplier: VWR Chemicals

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

Supplier: Merck

2-(Trimethylsiloxy)-1,3-butadiene for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Dichloro-4-nitrobenzene for synthesis

Supplier: Merck

N,N-Dimethyl-1,3-diaminopropane, 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.

Supplier: Merck

1,3-Dimethyl-2-imidazolidinone ≥99.0% (by GC) for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Dimethylbarbituric acid for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Diethyl-2-thiourea, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: Merck

1,3-Dioxolane stabilised, Sigma-Aldrich®

Supplier: VWR Chemicals

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

Supplier: Merck

1,3-Dibromo-5,5-dimethylhydantoin, Sigma-Aldrich®

Supplier: VWR Chemicals

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

Supplier: Merck

1,3-Diethoxy-2-propanol for synthesis, Sigma-Aldrich®

Supplier: Merck

1,3-Dibutyl-2-thiourea, Sigma-Aldrich®

Supplier: Merck

2-Ethylhexane-1,3-diol (mixture of isomers) for synthesis, Sigma-Aldrich®