ChemNet > CAS > 5231-87-8 3,4-Diethoxy-3-cyclobutene-1,2-dione

5231-87-8 3,4-Diethoxy-3-cyclobutene-1,2-dione

??? ?????	3,4-Diethoxy-3-cyclobutene-1,2-dione
??? ???????	3,4-Diethoxy-3-cyclobutene-1,2-dione; Squaric acid diethyl ester; Diethyl squarate; 3,4-diethoxycyclobut-3-ene-1,2-dione
????? ????????	C₈H₁₀O₄
??? ???????	170.1626
InChI	InChI=1/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
????? ??????	5231-87-8
?????? ???????
?????	1.19g/cm³
???? ?????	325.7°C at 760 mmHg
???? ????	1.477
???? ??????	135.4°C
?????? ??	insoluble
???? ????	0.000226mmHg at 25°C
??? ??????	Xn:Harmful;
????? ???	R36/37/38:; R42/43:;
??????? ?????	S23:; S24:; S26:; S37/39:;

Chemicals Suppliers(5):: 1Beijing F&F Chemical Co.,Ltd.; 2Shanghai Domen International Co., Ltd; 3Hangzhou Sage Chemical Co., Ltd.; 4Frinton Laboratories; Contact Suppliers; Post Buying Leads; Related selling offers

潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图