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N-Methoxy-N-methylacetamide

Product Name
N-Methoxy-N-methylacetamide
CAS No.
78191-00-1
Chemical Name
N-Methoxy-N-methylacetamide
Synonyms
N-Methoxy-N-methylacetamid;N-ACETYL-N,O-DIMETHYLHYDROXYLAMINE;N-Methoxy-N-methyL;N-METHOXY-N-METHLACETAMIDE;N-METHOXY-N-METHYLACETAMIDE;N-Methyl-N-methoxyacetamide;N-Methoxyl-N-methylacetamide;AcetaMide, N-Methoxy-N-Methyl-;N-Methoxy-N-methylacetamide>N-Methoxy-N-methylacetamide, 98 %
CBNumber
CB6466684
Molecular Formula
C4H9NO2
Formula Weight
103.12
MOL File
78191-00-1.mol
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N-Methoxy-N-methylacetamide Property

Boiling point:
152 °C (lit.)
Density 
0.97 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.426(lit.)
Flash point:
121 °F
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
Liquid
color 
Colorless
Water Solubility 
Soluble
InChI
InChI=1S/C4H9NO2/c1-4(6)5(2)7-3/h1-3H3
InChIKey
OYVXVLSZQHSNDK-UHFFFAOYSA-N
SMILES
C(N(OC)C)(=O)C
CAS DataBase Reference
78191-00-1(CAS DataBase Reference)
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Safety

Risk Statements 
10
Safety Statements 
16-24/25
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
HazardClass 
3
PackingGroup 
III
HS Code 
29280000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
513253
Product name
N-Methoxy-N-methylacetamide
Purity
98%
Packaging
5g
Price
$104
Updated
2025/07/31
TCI Chemical
Product number
M0919
Product name
N-Methoxy-N-methylacetamide
Purity
>98.0%(GC)
Packaging
10g
Price
$46
Updated
2025/07/31
TCI Chemical
Product number
M0919
Product name
N-Methoxy-N-methylacetamide
Purity
>98.0%(GC)
Packaging
25g
Price
$90
Updated
2025/07/31
TRC
Product number
M263295
Product name
N-Methoxy-N-methylacetamide
Packaging
5g
Price
$80
Updated
2021/12/16
Matrix Scientific
Product number
075518
Product name
N-Methoxy-N-methylacetamide
Purity
95+%
Packaging
25g
Price
$48
Updated
2021/12/16
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N-Methoxy-N-methylacetamide Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid

Uses

N-Methoxy-N-methylacetamide, is a Weinreb amide used in the synthesis of marine natural products myriaporone and usneoidone as a ketone synthon.

Preparation

N-Methoxy-N-methylacetamide can be prepared by reaction of Acetyl Chloride with commercially available N,O-Dimethylhydroxylamine hydrochloride in pyridine, followed by distillation at reduced pressure (65%).

General Description

Simple Weinreb amide used in the synthesis of marine natural products myriaporone and usneoidone as a ketone synthon.

Synthesis

6638-79-5

75-36-5

78191-00-1

N-Methoxy-N-methylacetamide (105) was synthesized as follows: pyridine (10 mL, 124 mmol) was slowly added dropwise to a well-stirred suspension of O,N-dimethylhydroxylamine hydrochloride (6 g, 62 mmol) and acetyl chloride (4.15 mL, 59 mmol) in dichloromethane (85 mL) under argon protection. The reaction mixture was gradually warmed to room temperature and stirred continuously for 3 hours. Subsequently, the reaction mixture was partitioned between brine (55 mL) and ether (85 mL). The aqueous phase was extracted with additional ether and the combined organic layers were dried over anhydrous sodium sulfate, concentrated and purified by reduced pressure distillation to afford Weinreb amide 105 (4.54 g, 72% yield) as a colorless liquid. The boiling point of the product was 42-44 °C/20 mmHg; IR (pure sample) showed absorption peaks located at 3497, 2971, 2941, 2824, 1663 cm-1; 1H NMR (CDCl3, 300 MHz) δ 3.62 (s, 3H), 3.11 (s, 3H), 2.05 (s, 3H); 13C NMR (CDCl3. 75.4 MHz) δ 171.8 (C), 61.0 (CH3), 31.9 (CH3), 19.6 (CH3). The spectral data of the obtained products are in agreement with literature reports.

storage

N-Methoxy-N-methylacetamide is stable but should be protected from moisture; use in a fume hood.

References

[1] Organic Letters, 2012, vol. 14, # 9, p. 2250 - 2253
[2] European Journal of Organic Chemistry, 2017, vol. 2017, # 2, p. 278 - 286
[3] Patent: EP1300403, 2003, A1
[4] Tetrahedron Letters, 1983, vol. 24, # 18, p. 1851 - 1854
[5] Tetrahedron Letters, 2007, vol. 48, # 3, p. 377 - 380

N-Methoxy-N-methylacetamide Preparation Products And Raw materials

Raw materials

Preparation Products

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N-Methoxy-N-methylacetamide Suppliers

Nanjing Jubai Biomedical Technology Co., Ltd.
Tel
13585203734
Email
info@jbzml.com
Country
China
ProdList
99
Advantage
58
Hangzhou Baiji Biotechnology Co., LTD
Tel
13615701454
Email
616495203@qq.com
Country
China
ProdList
23
Advantage
58
Suzhou Highfine Biotech Co., Ltd
Tel
0512-69209928 18796809688
Email
zhouyingxiang@highfine.com
Country
China
ProdList
1356
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58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
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76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
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Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
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61
Suzhou Highfine Biotech Co., Ltd
Tel
0512-69209928 18796809688
Fax
0512-68417696
Email
zhouyingxiang@highfine.com
Country
China
ProdList
475
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75
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
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56
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View Lastest Price from N-Methoxy-N-methylacetamide manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
N-Methoxy-N-methylacetamide 78191-00-1
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98.0%
Supply Ability
10000KGS
Release date
2025-07-04
Shaanxi Dideu Medichem Co. Ltd
Product
N-Methoxy-N-methylacetamide 78191-00-1
Price
US $0.00-0.00/KG
Min. Order
5mg
Purity
99% HPLC
Supply Ability
2000tons
Release date
2019-12-30
Career Henan Chemical Co
Product
N-Methoxy-N-methylacetamide 78191-00-1
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2018-08-06

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