成人免费黄色毛片,狠狠躁日日躁夜夜躁老司机,黄色免费视频在线,日韩性xx,偷偷操不一样的99,久久人国产,色婷婷一区二区三区av免费看

Weinan Huifeng New Material Technology Co., Ltd.

4-Aminobenzoic acid

4-Aminobenzoic acid

appearance: white crystal powder
Purity: 98%
Structural formula:

【English name】p-aminobenzoic acid
【Relative molecular weight】137.14
【Density】1.374(25℃)
【Melting point (℃)】187~188
【CAS#】150-13-0
【EINECS#】 205-753-0
To use:
As intermediate of dyes and medical intermediate; for production of active red M-80, M-10B, active purple X-2R; as sun-screening agent


【Return】