8(Z)-Eicosenoic Acid methyl ester (Standard) is the standard substance of 8(Z)-Eicosenoic Acid methyl ester, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Methyl 8(Z)-eicosenoate, an esterified variant of 8(Z)-eicosenoic acid, serves as a standard for quantifying 8(Z)-eicosenoic acid utilizing gas chromatography.

Carbendazim-D3 (Standard)是Carbendazim-D3的标准品，适用于定量分析、质量控制及生化实验等相关研究。

5-Nitroguaiacol sodium (Standard)是5-Nitroguaiacol sodium的标准品，适用于定量分析、质量控制及生化实验等相关研究。

Ponceau MX (Standard) is the standard substance of Ponceau MX, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Ponceau MX is a dye, which may be used in biochemistry study.

Disperse Black 2 (Standard)是Disperse Black 2的标准品，适用于定量分析、质量控制及生化实验等相关研究。

Trimethacarb (Standard) is the standard substance of Trimethacarb, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Trimetharba is a kind of insecticide.