成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> CAS DataBase List >>1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester

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

CAS No.
21881-78-7
Chemical Name:
1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester
Synonyms
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
Molecular Formula:
C21H26N2O6
Molecular Weight:
402.44
MDL Number:
MFCD00347775
MOL File:
21881-78-7.mol
Last updated:2024-04-22 15:07:34

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

Melting point 123-125℃ (ethanol )
Boiling point 512.1±50.0 °C(Predicted)
Density 1.186±0.06 g/cm3(Predicted)
storage temp. Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka 2.94±0.70(Predicted)
color Pale Beige
Stability Hygroscopic

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

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC D291310 3-Des(2-methoxyethyl)3-(1-Methylethyl)EsterNimodipine 21881-78-7 1g $1455 2021-12-16 Buy
Biosynth Carbosynth ID57941 (RS)-Di-isopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate 21881-78-7 100mg $60 2021-12-16 Buy
Biosynth Carbosynth ID57941 (RS)-Di-isopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate 21881-78-7 250mg $100 2021-12-16 Buy
Biosynth Carbosynth ID57941 (RS)-Di-isopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate 21881-78-7 500mg $150 2021-12-16 Buy
Biosynth Carbosynth ID57941 (RS)-Di-isopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate 21881-78-7 1g $280 2021-12-16 Buy
Product number Packaging Price Buy
D291310 1g $1455 Buy
ID57941 100mg $60 Buy
ID57941 250mg $100 Buy
ID57941 500mg $150 Buy
ID57941 1g $280 Buy

1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester Chemical Properties,Uses,Production

Uses

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-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 63)Suppliers
Supplier Tel Email Country ProdList Advantage
Standardpharm Co. Ltd. 		86-714-3992388 overseasales1@yongstandards.com United States 14332 58
Career Henan Chemica Co 		+86-0371-86658258 +8613203830695 laboratory@coreychem.com China 30241 58
CR Corporation Limited 		+8613062833949 fred.wen@crcorporation.cn China 8647 58
sgtlifesciences pvt ltd 		+8617013299288 dj@sgtlifesciences.com China 12373 58
China National Standard Pharmaceutical Corporation Limited 		+8615391658522 overseasales@yongstandards.com China 11922 58
ShenZhen H&D Pharmaceutical Technology Co., LTD 		+8618627948422 sale@hdimpurity.com China 3389 58
Guangzhou PI PI Biotech Inc 020-81716320 +86-13602409664 Sales@pipitech.com China 3633 55
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5050 50
ChemStrong Scientific Co.,Ltd 0755-0755-66853366 13670046396 sales@chem-strong.com China 18044 56
Shanghai Kewel Chemical Co., Ltd. 021-64609169 18901607656 greensnown@163.com China 9906 50

View Lastest Price from 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Nimodipine EP Impurity B pictures 2024-09-20 Nimodipine EP Impurity B
US $0.00 / mg 10mg 0.98 10g ShenZhen H&D Pharmaceutical Technology Co., LTD
Nimodipine EP Impurity B pictures 2024-04-10 Nimodipine EP Impurity B
21881-78-7
 US $0.00-0.00 / mg 10mg 90%+ 10g Guangzhou PI PI BIOTECH INC
1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester Nimodipine EP Impurity B (RS)-Di-iso-propyl-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate Bis(1-methylethyl) 2,6-Dimethyl-4-( Nimodipine Impurity B Control 3,5-diisopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylate Nimodipine EP Imp B Nimodipine Impurity 2 3-Des(2-methoxyethyl) 3-(1-Methylethyl) Ester Nimodipine Bis(1-methylethyl) 2,6-Dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate Nitrendipine Impurity1224 diisopropyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate Nitrendipine Impurity 8 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 3,5-bis(1-methylethyl) ester Nilvadipine Impurity D Diisopropyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate (Nimodipine Impurity) Nimodipine EP Impurity B(Nitrendipine Impurity1224) Nilvadipine Impurity 4 21881-78-7