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

MESO-2,3-BUTANEDIOL

MESO-2,3-BUTANEDIOL ??? ???
?? ??:
5341-95-7
???:
MESO-2,3-BUTANEDIOL
???(??):
(2S,3R)-2,3-Butanediol;NSC 2164;endo-2,3-butyldiol;MESO-2,3-BUTANEDIOL;meso-butane-2,3-diol;(R,S)-butane-2,3-diol;2,3-butanediol (meso);(2R,3S)-2,3-Butanediol;meso-2,3-Butanediol,97%;(2S,3R)-Butane-2,3-diol
CBNumber:
CB9435306
???:
C4H10O2
??? ??:
90.12
MOL ??:
5341-95-7.mol
MSDS ??:
SDS

MESO-2,3-BUTANEDIOL ??

???
32-34 °C (lit.)
?? ?
183-184 °C (lit.)
??
0.99
???
24.7-222.5Pa at 20-50℃
???
1.4348
???
185 °F
?? ??
2-8°C
??? ??
??
?? ?? (pKa)
14.67±0.20(Predicted)
??
Colorless to light yellow Liquid
BRN
1718900
Henry's Law Constant
2.2×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
???
????. ?? ??. ?? ???? ???? ????.
??? ?? ??
SOLVENT
HUMECTANT
SKIN CONDITIONING
FRAGRANCE
InChI
1S/C4H10O2/c1-3(5)4(2)6/h3-6H,1-2H3/t3-,4+
InChIKey
OWBTYPJTUOEWEK-ZXZARUISSA-N
SMILES
C[C@@H](O)[C@H](C)O
LogP
-0.84--0.79 at 23℃ and pH7.3-7.6
????
70.2mN/m at 1g/L and 20℃
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
????? 24/25
WGK ?? 3
F ?????? 3-10
???? ??? 11 - Combustible Solids
????(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 ??·?·??·???·??·...·????? ??? ????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.

MESO-2,3-BUTANEDIOL C??? ??, ??, ??

??? ??

viscous colourless liquid

??

ChEBI: The meso diastereoisomer of butane-2,3-diol.

?? ??

meso-2,3-Butanediol is a diol. 2,3-Butanediol (2,3-DB) exists in three stereoisomeric forms: dextro, levo and meso. 2,3-DB is a crucial chemical feedstock and has wide applications in industry. Production of meso-2,3-butanediol under low oxygen condition by metabolically engineered Escherichia coli is reported. 2,3-Butanediol can be converted to 1,3-butadiene, which is used in the preparation of synthetic rubber. meso-2,3-Butanediol is the source of production of 2-butanol by isolates of lactic acid bacteria.

MESO-2,3-BUTANEDIOL ?? ?? ? ???

???

?? ??


MESO-2,3-BUTANEDIOL ?? ??

???( 37)?? ??
??? ?? ??? ?? ?? ? ??
Wuhan Fortuna Chemical Co.,Ltd
+86-2759207851; +8618007136271
hk@fortunachem.com China 6008 58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
+8618950047208
ellena@amitychem.com China 43414 58
DAYANG CHEM (HANGZHOU) CO.,LTD
+86-88938639 +86-17705817739
info@dycnchem.com China 53803 58
J & K SCIENTIFIC LTD. 18210857532; 18210857532
jkinfo@jkchemical.com China 96815 76
Energy Chemical 021-021-58432009 400-005-6266
sales8178@energy-chemical.com China 44802 61
Shanghai Macklin Biochemical Co.,Ltd. 15221275939; 15221275939
shenlinxing@macklin.cn China 15781 55
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163
yftan@aikonchem.com China 16676 50
Sigma-Aldrich 021-61415566 800-8193336
orderCN@merckgroup.com China 51395 80
Shanghai YuanYe Biotechnology Co., Ltd. 021-61312847; 18021002903
3008007409@qq.com China 89686 60
Yantai ShengKailun Chemical Technology Co., Ltd. 13356901049
3119594100@qq.com China 7964 55

MESO-2,3-BUTANEDIOL ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved
华容县| 孙吴县| 英山县| 西乌珠穆沁旗| 盐城市| 林州市| 慈溪市| 石阡县| 临江市| 阳信县| 秦皇岛市| 澄城县| 同德县| 柘城县| 上杭县| 樟树市| 营山县| 惠州市| 丹棱县| 绿春县| 奉新县| 天镇县| 武汉市| 瑞丽市| 新和县| 梁山县| 夹江县| 清镇市| 视频| 都匀市| 建始县| 洱源县| 志丹县| 桂林市| 汶川县| 宁城县| 潜江市| 收藏| 五原县| 玛沁县| 大英县|