ChemicalBook >?? ???? >1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)????

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)????

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? ??? ???

?? ??:: 21881-78-7

???:: 1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)????

???(??):: 1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)????

???:: 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester

???(??):: Nimodipine EP Imp B;Nimodipine Impurity 2;Nilvadipine Impurity D;Nilvadipine Impurity 4;Nitrendipine Impurity 8;Nimodipine EP Impurity B;Nitrendipine Impurity1224;Nimodipine Impurity B Control;Bis(1-methylethyl) 2,6-Dimethyl-4-(;Nimodipine EP Impurity B(Nitrendipine Impurity1224)

CBNumber:: CB82717263

???:: C21H26N2O6

??? ??:: 402.44

MOL ??:: 21881-78-7.mol

MSDS ??:: SDS

?? ?? 76

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? ??

???: 123-125℃ (ethanol )

?? ?: 512.1±50.0 °C(Predicted)

??: 1.186±0.06 g/cm3(Predicted)

?? ??: Hygroscopic, -20°C Freezer, Under inert atmosphere

???: ?????(?? ???), ???(?? ???)

??? ??: ??

??? ??: ??? ??

?? ?? (pKa): 2.94±0.70(Predicted)

??: ?????

???: ???

InChI: 1S/C21H26N2O6/c1-11(2)28-20(24)17-13(5)22-14(6)18(21(25)29-12(3)4)19(17)15-8-7-9-16(10-15)23(26)27/h7-12,19,22H,1-6H3

InChIKey: UPOXKUKUWZYRQV-UHFFFAOYSA-N

SMILES: CC1=C(C(OC(C)C)=O)C(C(C(OC(C)C)=O)=C(C)N1)C2=CC=CC([N+]([O-])=O)=C2

??

WGK ??	WGK 3
???? ???	11 - Combustible Solids

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? C??? ??, ??, ??

??

3-Des(2-methoxyethyl) 3-(1-Methylethyl) Ester Nimodipine (Nimodipine EP Impurity B) can be used in synthetic preparation of dihydropyridinedicarboxylic acid esters by methylimidazolium trifluoroacetate-catalyzed Hantzsch cyclocondensation reaction of oxo-carboxylic acid esters with aldehydes and ammonium acetate. It can also be used as an analyte for analytical study in developing and optimizing a validated isocratic reversed-phase high-performance liquid chromatograhy separation of nimodipine and impurities in tablets using experimental. design methodology. It is an impurity of the drug Nimodipine (N478200).

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? ?? ?? ? ???

???

?? ??

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? ?? ??

???( 76)?? ??

???	??	???	??	?? ?	??
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14320	58
Career Henan Chemica Co	+86-0371-86658258 +86-13203830695	laboratory@coreychem.com	China	30203	58
CR Corporation Limited		fred.wen@crcorporation.cn	China	8642	58
sgtlifesciences pvt ltd	+91-8790379245	dj@sgtlifesciences.com	China	12351	58
ShenZhen H&D Pharmaceutical Technology Co., LTD	+86-18627948422	sale@hdimpurity.com	China	3676	58
Sinco Pharmachem (ShenZhen) R&D Co., Ltd.	+86-18603013401	jack.lin@sincopharmachem.com	China	9999	58
QUALITY CONTROL SOLUTIONS LTD.	+86-0755-66853366 +8613670046396	export03@qcsrm.com	China	24318	58
BOC Sciences	1-631-485-4226; 16314854226	info@bocsci.com	United States	9920	65
S.Z. PhyStandard Bio-Tech. Co., Ltd.	0755-4000505016 13380397412	3001272453@qq.com	China	5000	50
Bide Pharmatech Ltd.	400-164-7117 18317119277	product02@bidepharm.com	China	40000	60

1,4-?????-2,6-???-4-(3-?????)-3,5-???????????(1-????)???? ?? ??:

Nimodipine Impurity 16 (Z)-3-aminobut-2-enamide 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid Nimodipine Impurity 15 Nimodipine Impurity 6 1-Boc-hexahydro-1,4-diazepine Nimodipine Nimodipine Impurity 4 NIMODIPINE RELATED COMPOUND A (50 MG) (2-METHOXYETHYL 1-METHYLETHYL 2,6-DIMETHYL-4-(3-NITROPHENYL)PYRIDINE-3,5-DICARBOXYLATE) NIMODIPINE RELATED COMPOUND B (50 MG) (BIS(2-METHOXYETHYL) 2,6-DIMETHYL-4-(3-NITROPHE-NYL)-1,4-DIHYDROPYRIDINE-3,5-DICARBOXYLATE) (AS) Nimodipine Impurity 5

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