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2-Benzylidene isobutyryl acetanilide

CAS No.
125971-57-5
Chemical Name:
2-Benzylidene isobutyryl acetanilide
Synonyms
4-METHYL-3-OXO-N-PHENYL-2-(PHENYLMETHYLENE)PENTANAMIDE;Atorvastatin Impurity 70;Atorvastatin calcium impurity 66;2-Benylidine isobutyryl acetanilide;2-Isobutyryl-N,3-DiphenylacrylaMide;2-Isobutyryl-3,N-diphenylacrylamide;2-Benzylidene isobutyryl acetanilide;Atorvastatin calcium intermediate M-3;2-Isobutyryl-N-phenyl-3-phenylacrylamide;Intermediates of Atorvastatin Calcium M-3
CBNumber:
CB8747499
Molecular Formula:
C19H19NO2
Molecular Weight:
293.36
MDL Number:
MFCD00671709
MOL File:
125971-57-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 05:27:28

2-Benzylidene isobutyryl acetanilide Properties

Melting point 143-154°C
Boiling point 519.4±50.0 °C(Predicted)
Density 1.151±0.06 g/cm3(Predicted)
vapor pressure 0-0Pa at 25-72℃
storage temp. 2-8°C
solubility Dichloromethane (Slightly), DMSO (Slightly)
form Powder
pka 12.23±0.70(Predicted)
InChI InChI=1S/C19H19NO2/c1-14(2)18(21)17(13-15-9-5-3-6-10-15)19(22)20-16-11-7-4-8-12-16/h3-14H,1-2H3,(H,20,22)
InChIKey SMUFHBOCNIUNPT-UHFFFAOYSA-N
SMILES C(NC1=CC=CC=C1)(=O)C(=CC1=CC=CC=C1)C(=O)C(C)C
LogP 2.2 at 38℃
Surface tension 67.9mN/m at 9.4mg/L and 20℃
CAS DataBase Reference 125971-57-5(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
REACH Registrations Inactive

2-Benzylidene isobutyryl acetanilide price More Price(42)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC TRC-I781040-1G 2-Isobutyryl-N-phenyl-3-phenylacrylamide (E/Z mixture) 125971-57-5 1g $154 2026-06-03 Buy
TRC TRC-I781040-10G 2-Isobutyryl-N-phenyl-3-phenylacrylamide (E/Z mixture) 125971-57-5 10g $167 2026-06-03 Buy
TRC TRC-I781040-100G 2-Isobutyryl-N-phenyl-3-phenylacrylamide (E/Z mixture) 125971-57-5 100g $1187 2026-06-03 Buy
Biosynth FI57579 2-Isobutyryl-N-phenyl-3-phenylacrylamide 125971-57-5 5g $181.45 2026-06-04 Buy
Biosynth FI57579 2-Isobutyryl-N-phenyl-3-phenylacrylamide 125971-57-5 10g $272.2 2026-06-04 Buy
Product number Packaging Price Buy
TRC-I781040-1G 1g $154 Buy
TRC-I781040-10G 10g $167 Buy
TRC-I781040-100G 100g $1187 Buy
FI57579 5g $181.45 Buy
FI57579 10g $272.2 Buy

2-Benzylidene isobutyryl acetanilide Chemical Properties, Uses, Production

Chemical Properties

White Solid

Uses

Intermediate for the synthesis of pyrrole derivatives.

Synthesis

N-Phenyl-isobutyloylacetamide

124401-38-3

Benzaldehyde

100-52-7

2-Benzylidene isobutyryl acetanilide

125971-57-5

To a reaction flask equipped with a thermometer and a 1000 mL mechanical stirrer, 41 g (0.2 mol) of the second intermediate, 2-methyl-3,5-dicarbonyl-5-anilino-butane, and 250 mL of n-heptane were added under nitrogen protection. Heating was refluxed to remove the water generated and the reaction lasted for about 6 hours. After the reaction system was cooled to room temperature, catalyst glycine 4 g and glacial acetic acid 6 g were added sequentially, followed by benzaldehyde 24 g (0.22 mol). The reaction mixture was heated to reflux temperature and the reaction was continued for about 8 hours, during which the reaction progress was monitored by TLC. After completion of the reaction, it was cooled to room temperature and the reaction mixture was washed with 50 mL of saturated sodium chloride solution. After addition of 100 mL of n-heptane, the organic phase was separated and dried over anhydrous sodium sulfate. The filtrate was concentrated under reduced pressure to give 46 g of the target product 4-methyl-3-oxo-N-phenyl-2-(benzylidene)pentanamide.

References

[1] Organic and Biomolecular Chemistry, 2016, vol. 14, # 7, p. 2291 - 2296
[2] Tetrahedron Letters, 1992, vol. 33, # 17, p. 2283 - 2284
[3] RSC Advances, 2014, vol. 4, # 63, p. 33175 - 33183
[4] Journal of Labelled Compounds and Radiopharmaceuticals, 2000, vol. 43, # 3, p. 261 - 270
[5] Journal of the Indian Chemical Society, 2010, vol. 87, # 4, p. 495 - 499

2-Benzylidene isobutyryl acetanilide Preparation Products And Raw materials

Global Suppliers ( 149)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
JIANGXI AIFEIMU TECHNOLOGY CO.,LTD 793-33899567 13735087952 sales@afmpharm.com China 51 61
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Sphchem Co., Ltd. 021-56491756 13512199871 2819742715@qq.com China 3994 55
Shanghai Topbiochem Technology Co., Ltd 021-58170097 info@topbiochem.com China 9509 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29977 65
Shanghai JONLN Reagent Co., Ltd. 400-0066400 13621662912 422131432@qq.com China 9970 55
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58

View Latest Price from 2-Benzylidene isobutyryl acetanilide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-methyl-3-oxo-N-phenyl-2-(phenylmethylene ) pentanamide  pictures 2026-08-08 4-methyl-3-oxo-N-phenyl-2-(phenylmethylene ) pentanamide
125971-57-5
1kg 99% 200 Hangzhou ICH Biofarm Co., Ltd
2-Benzylidene isobutyryl acetanilide 2-BENZYLIDENE-N-PHENYL-ISOBUTYLOYLACETAMIDE 2-Benylidine isobutyryl acetanilide 4-METHYL-3-OXO-N-PHENYL-2-(PHENYLMETHYLENE)-PENTAN 2-Isobutyryl-N-phenyl-3-phenylacrylamide Atorvastatin Impurity 70 2-Isobutyryl-N-phenyl-3-phenylacrylamide (E/Z mixture) 4-Methyl-3-oxo-N-phenyl-2-(phenylMethylidene)pentanaMide 2-Isobutyryl-N,3-DiphenylacrylaMide PentanaMide, 4-Methyl-3-oxo-N-phenyl-2-(phenylMethylene)- 2-Benzylidene-4-Methyl-3-oxo-N-phenylpentanaMide Intermediates of Atorvastatin Calcium M-3 (2Z)-2-benzylidene-4-methyl-3-oxo-N-phenylpentanamide 4-methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamideQ: What is 4-methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamide Q: What is the CAS Number of 4-methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamide Q: What is the storage condition of 4-methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamide Q: What are the applications of 4-methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamide 125971-57-5 2-Benzylidene isobutyryl acetanilide Atorvastatin calcium impurity 66 Atorvastatin calcium intermediate M-3 2-Isobutyryl-3,N-diphenylacrylamide 4-METHYL-3-OXO-N-PHENYL-2-(PHENYLMETHYLENE)PENTANAMIDE 125971-57-5 API intermediates Aromatics Intermediates