4,4′-Dinitro-2-biphenylamine ≥98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4,4'-Dinitro-2-biphenylamine,98%

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4,4'-Bis(dimethylamino)diphenylmethane 98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4,4′-Methylenebis(N,N-dimethylaniline) is an intermediate in dye manufacture and works as a reagent for the determination of lead. It is suitable for the qualitative assay of cyanogens.

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1,1′-Dioctadecyl-4,4′-bipyridinium dibromide ≥97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,1'-Dioctadecyl-4,4'-bipyridinium dibromide,97% (Octadecyl viologen dibromide)

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4,4-Dimethylpiperidine

Supplier: Apollo Scientific

4,4-Dimethylpiperidine

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4,4'-Biphenyldicarbonitrile 98%

Supplier: Thermo Fisher Scientific

4,4'-Biphenyldicarbonitrile 98%

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4,4'-Diaminoazobenzene 95%

Supplier: Thermo Fisher Scientific

4,4'-Diaminoazobenzene 95%

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4,4'-Diiodobiphenyl ≥99%

Supplier: Thermo Fisher Scientific

4,4'-Diiodobiphenyl ≥99%

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4,4-Difluorocyclohexaneethanamine 95%

Supplier: Apollo Scientific

4,4-Difluorocyclohexaneethanamine 95%

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4,4'-Diacetylbiphenyl 98%

Supplier: Thermo Fisher Scientific

4,4'-Diacetylbiphenyl 98%

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4,4'-Diethoxyazobenzene ≥97%

Supplier: Thermo Fisher Scientific

4,4'-Diethoxyazobenzene ≥97%

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4,4'-Diisopropylbiphenyl ≥97%

Supplier: Thermo Fisher Scientific

4,4'-Diisopropylbiphenyl ≥97%

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4,4-Dimethoxybutanenitrile 95%

Supplier: Apollo Scientific

4,4-Dimethoxybutanenitrile 95%

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4,4'-Dichlorochalcone ≥98%

Supplier: Thermo Fisher Scientific

4,4'-Dichlorochalcone ≥98%

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4,4-Dimethoxybutanone 92%

Supplier: Thermo Fisher Scientific

4,4-Dimethoxybutanone 92%

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1,1′-Diethyl-4,4′-cyanine iodide, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,1′-Diethyl-4,4′-cyanine iodide is a well-known photographic sensitizing dye. It belongs to the class of quinocyanine dyes and exhibits red and blue shifted absorption bands on aggregation. It is also known as 1-ethyl-4-[(1-ethyl-4(1H)-quinolinylidene) methyl] quinolinium iodide. It is suitable for use in silver halide photography.