成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

????????????

????????????
???????????? ??? ???
?? ??:
34688-70-5
???:
????????????
???(??):
????????????
???:
PENTAMETHYLPHENYLACETONITRILE
???(??):
PENTAMETHYLPHENYLACETONITRILE;PENTAMETHYLPHENYLACETONITRILE 97%;Pentamethylphenylacetonitrile, 97%,;2,3,4,5,6-PENTAMETHYLBENZYL CYANIDE;(2,3,4,5,6-Pentamethylphenyl)acetonitrile;Benzeneacetonitrile, 2,3,4,5,6-pentamethyl-;2-(2,3,4,5,6-pentamethylphenyl)acetonitrile
CBNumber:
CB1354784
???:
C13H17N
??? ??:
187.28
MOL ??:
34688-70-5.mol

???????????? ??

???
113-115°C
BRN
2049073
CAS ??????
34688-70-5
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
?? ???? ?? 20/21/22
????? 36
????(UN No.) 3276
?? ?? 6.1
???? III
????(GHS): GHS hazard pictograms
?? ?:
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H312 ??? ???? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P280,P302+P352, P312, P322, P363,P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H331 ???? ??? ?? ?? ?? ?? ?? 3 ?? GHS hazard pictograms P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P280 ????/???/???/?????? ?????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P405 ???? ?????.
NFPA 704
1
2 0

???????????? C??? ??, ??, ??

???????????? ?? ?? ? ???

???

?? ??


???????????? ?? ??

???( 28)?? ??
??? ?? ??? ?? ?? ? ??
Shaanxi Didu New Materials Co. Ltd
+86-89586680 +86-13289823923
1026@dideu.com China 8808 58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
+8618950047208
ellena@amitychem.com China 43416 58
J & K SCIENTIFIC LTD. 18210857532 18210857532
jk.info@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 021-61259108 18621169109
market03@meryer.com China 40228 62
Alfa Aesar 400-6106006
saleschina@alfa-asia.com China 30123 84
Energy Chemical 021-021-58432009 400-005-6266
sales8178@energy-chemical.com China 44732 61
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
sj_scrc@sinopharm.com China 9815 79
Shenzhen Regent Biochemical Technology Co., Ltd. 0755-85201366 18938635012
sales@regentsciences.com China 9455 58
Biosynth Biological Technology (Suzhou) Co Ltd 51288865780
sales@biosynth.com China 233051 58
Santa Cruz Biotechnology Inc 60936350
scbt@scbt.com China 222068 58

???????????? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved