Dear Luu Quang Khanh,
For import the this product “powder sodium dodecylbenzene sulfonate” , we used the code 34021199 for every time. If you use the code 34022099, we will have a problem with the Customs for import license.
For the Msds must be use products name is “Powder sodium dodecylbenzene sulfonate” same as all documents. In the composition of Msds give to use the name is "sodium dodecylbenzene sulfanate 100%” instead.
We look forward from your cooperation.