亚洲色在线视频,特一级黄色片,久久毛片久久**,一级女人毛片,婷婷综合久久中文字幕,欧美激情亚洲精品日韩1区2区,欧美一级精品高清在线观看

<nav id="essyc"></nav>

P-toluene sulfonyl isocyanate

Trigraname:PTSI

CAS No.:4083-64-1

C₈H₇NO₃S

Technical Specifications:

Item	Specification
Appearance:	colorless transparent liquid
Assay:	≥98%
Free acid:	≤0.5%
Chroma(APHA):	≤50

Package:200KG steel plastic drum

Note: Inquiry can export directly call +86-512-65436628consultation!