一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

(??????-??-4-???)-????

(??????-??-4-???)-????
(??????-??-4-???)-???? ??? ???
?? ??:
130312-01-5
???:
(??????-??-4-???)-????
???(??):
(??????-??-4-???)-????
???:
(TETRAHYDRO-PYRAN-4-YLIDENE)-ACETIC ACID
???(??):
2-(oxan-4-ylidene)acetic acid;(TETRAHYDRO-PYRAN-4-YLIDENE)-ACETIC ACID;(Tetrahydro-4H-pyran-4-ylidene)acetic acid;2-(2H-pyran-4(3H,5H,6H)-ylidene)acetic acid;2-(tetrahydro-4H-pyran-4-ylidene)Acetic acid;2-(Dihydro-2H-pyran-4(3H)-ylidene)acetic acid;Acetic acid, 2-(tetrahydro-4H-pyran-4-ylidene)-;REF DUPL: (Tetrahydro-pyran-4-ylidene)-acetic acid
CBNumber:
CB5744073
???:
C7H10O3
??? ??:
142.15
MOL ??:
130312-01-5.mol

(??????-??-4-???)-???? ??

???
84-85 °C(Solv: hexane (110-54-3))
?? ?
310.6±35.0 °C(Predicted)
??
1.300±0.06 g/cm3(Predicted)
?? ??
2-8°C
?? ?? (pKa)
3.82±0.41(Predicted)
??
White to off-white Solid
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
HS ?? 2932990090
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? P264, P270, P301+P312, P330, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ??
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P280 ????/???/???/?????? ?????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.

(??????-??-4-???)-???? C??? ??, ??, ??

(??????-??-4-???)-???? ?? ?? ? ???

???

?? ??


(??????-??-4-???)-???? ?? ??

???( 57)?? ??
??? ?? ??? ?? ?? ? ??
Wuhan Chemwish Technology Co., Ltd
027-67849912
sales@chemwish.com CHINA 10821 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
+8613580539051
joe@yuhengpharm.com CHINA 21142 58
Career Henan Chemica Co
+86-0371-86658258 +8613203830695
laboratory@coreychem.com China 30224 58
AFINE CHEMICALS LIMITED
+86-571-85134551
info@afinechem.com China 15080 58
Zhejiang J&C Biological Technology Co.,Limited
+1-2135480471 +1-2135480471;
sales@sarms4muscle.com China 10473 58
DAYANG CHEM (HANGZHOU) CO.,LTD
+86-88938639 +86-17705817739
info@dycnchem.com China 53803 58
Amadis Chemical Company Limited
571-89925085
sales@amadischem.com China 131956 58
Shanghai Sinch Parmaceuticals Tech. Co. Ltd. +86-21-54098501
sales@sinch.com.cn China 11598 64
J & K SCIENTIFIC LTD. 18210857532; 18210857532
jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109
market03@meryer.com China 40228 62

(??????-??-4-???)-???? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved
威海市| 安福县| 滨海县| 分宜县| 正蓝旗| 莱州市| 星子县| 巴青县| 泾阳县| 湘西| 呼和浩特市| 枣阳市| 东源县| 天峨县| 蓬安县| 荣成市| 资中县| 宝应县| 龙川县| 拜城县| 英德市| 吴旗县| 敦化市| 临夏县| 无锡市| 瓮安县| 大厂| 克东县| 新化县| 日喀则市| 广德县| 泾阳县| 天门市| 保山市| 江口县| 房产| 安泽县| 通辽市| 册亨县| 宣城市| 荃湾区|