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

?????

?????
????? ??? ???
?? ??:
4971-56-6
???:
?????
???(??):
?????
???:
TETRONIC ACID
???(??):
Furan-2,4(3H,5H)-dione;2,4(3H,5H)-Furandione;2-hydroxy-2H-furan-5-one;TETRONIC ACID;tectronic acid;Tetronicacidmin;Furan-2,4-dione;Tetronicacid,96%;Oxolane-2,4-dione;TETRONIC ACID 98%
CBNumber:
CB3670637
???:
C4H4O3
??? ??:
100.07
MOL ??:
4971-56-6.mol

????? ??

???
139-140°C (dec.)
?? ?
324.3±35.0 °C(Predicted)
??
1.375±0.06 g/cm3(Predicted)
?? ??
Inert atmosphere,2-8°C
???
DMSO(??), ???(??)? ???
??? ??
??
??? ??
??? ??
?? ?? (pKa)
10.67±0.20(Predicted)
??
???? ?????
InChI
InChI=1S/C4H4O3/c5-3-1-4(6)7-2-3/h1-2H2
InChIKey
JCGNDDUYTRNOFT-UHFFFAOYSA-N
SMILES
O1CC(=O)CC1=O
CAS ??????
4971-56-6(CAS DataBase Reference)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36/37/38
????? 26-36/37/39-36
HS ?? 2932190090
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
1 0

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

??

Tetronic Acid can be used for insecticides.

Synthesis Reference(s)

The Journal of Organic Chemistry, 56, p. 7007, 1991 DOI: 10.1021/jo00025a012

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

???

?? ??


????? ?? ??

???( 172)?? ??
??? ?? ??? ?? ?? ? ??
Shaanxi Dideu Medichem Co. Ltd
+86-29-81139210 +86-18192627656
1059@dideu.com China 3703 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365
mina@chuanghaibio.com China 18126 58
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075
jack.li@time-chemicals.com China 1803 55
Speranza Chemical Co., Ltd.
+86-86-075521030354 +8618688942810
sophieliu@speranzachem.com China 923 55
BOC Sciences
+1-631-485-4226
inquiry@bocsci.com United States 19936 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 49979 58
career henan chemical co
+86-0371-86658258 +8613203830695
factory@coreychem.com China 29792 58
Antai Fine Chemical Technology Co.,Limited
18503026267
info@antaichem.com CHINA 9636 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58
ANHUI WITOP BIOTECH CO., LTD
+8615255079626
eric@witopchemical.com China 23541 58

????? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved
玉龙| 崇阳县| 大渡口区| 澄城县| 宁明县| 罗山县| 江西省| 铜鼓县| 铜鼓县| 昌江| 冷水江市| 文登市| 蒙山县| 阿克苏市| 长春市| 汝城县| 邢台县| 杭锦旗| 郴州市| 信宜市| 鲁甸县| 腾冲县| 醴陵市| 凤庆县| 江孜县| 裕民县| 德江县| 仪陇县| 固始县| 交口县| 紫阳县| 竹溪县| 陈巴尔虎旗| 宁陕县| 化州市| 临江市| 彝良县| 高邮市| 达州市| 沛县| 商南县|