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Dichloro(chloromethyl)methylsilane

Direct Black 38

Dimethyltin Dichloride

D751 Chelating ion exchange resin (styrene，macroporous)

6，7-Dihydroxycoumarin

Dysprosium(III) sulfate octahydrate

2，5-Dimethylindole

2，6-Diacetylpyridine

2，4-Dichloro-5-nitropyrimidine

4，6-Dichloropyrimidine-5-carboxaldehyde

(+)-Di-|p|-toluoyl-D-tartaric acid

2，4-Dichloro-5-(trifluoromethyl)pyrimidine

2，4-Dichloro-5-fluoropyrimidine

2，4-Dichloro-5-iodopyrimidine

4，5-Dimethylthiazole

Diethyl D-(-)-tartrate

3，5-Di-|tert|-butylbromobenzene

2，2-Dimethyl-N-(3-pyridyl)propionamide

1，3-Dichloropropene， mixture of |cis| and |trans|

1，3-Dichloroisoquinoline

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