甲基二苯基检测标准

Methylphenyldichlorosilane for industial use

Rubber antioxidant—N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine（6PPD）

Dimethoxymethylphenylsilane for industrial use

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide

Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide

Diphenylmethane diisocyanate

铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法

Blend of rubber antioxidant-N-( 1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine and N-(1,4-dimethylpentyl)-N'-phenyl-p-phenylenediamine (6PPD/7PPD)

Norm of energy consumption per unit production of toluene diisocyanate and diphenyl methane diisocyanate

Fragrance- 2,2-dimethyl-3-(4-ethylphenyl) propionaldehyde

Rubber antioxidant-N-(1,4-dimethylpentyl)-N'-phenylp-phenylenediamine(7PPD)

Vulcanizing accelerator一N, N'-dimethyl-N,N'-diphenylthiuram disulfide (MPTD)

The norm of energy consumption per unit product of diphenyl methane diisocyanate

Rubber antioxidant-N-(1-methylheptyl)-N'-phenyl-p-phenylenediamine (8PPD)

N,N-Dimethy aniline