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19869-42-2

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  • China Largest factory Manufacturer Supply Hexahydro-1-methyl-4H-azepin-4-one CAS 19869-42-2

    Cas No: 19869-42-2

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19869-42-2 Usage

Chemical Properties

colorless to light yellow liquid

Uses

1-Methylazepan-4-One Hydrochloride is used in preparation of N-Methylhexahydroazepan-4-one Hydrochloride.

Synthesis Reference(s)

Synthetic Communications, 21, p. 881, 1991 DOI: 10.1080/00397919108019772

Check Digit Verification of cas no

The CAS Registry Mumber 19869-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,6 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19869-42:
(7*1)+(6*9)+(5*8)+(4*6)+(3*9)+(2*4)+(1*2)=162
162 % 10 = 2
So 19869-42-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H13NO.ClH/c1-8-5-2-3-7(9)4-6-8;/h2-6H2,1H3;1H

19869-42-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-Methylazepan-4-one

1.2 Other means of identification

Product number -
Other names Hexahydro-1-methyl-4H-azepin-4-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:19869-42-2 SDS

19869-42-2Relevant articles and documents

Method for preparing N-methyl azepine-4-one hydrochloride

-

, (2021/06/09)

The invention discloses a method for preparing N-methyl azepine-4-one hydrochloride. According to the method, 4-oxime cyclohexanone is taken as a raw material, aza-cycloheptane-2,5-diketone is obtained under a Beckmann rearrangement condition, aza-cycloheptane-2,5-diketone and ethylene glycol are subjected to condensation to generate ketal, amide is reduced through red aluminum, methylation is performed, ethylene glycol is removed under a hydrochloric acid condition, and finally N-methyl azepine-4-one hydrochloride is obtained. The invention provides a safe, reliable and efficient synthetic route, the raw materials are low in price, the reaction conditions are mild, explosive diazomethane does not need to be used, methyl acrylate which is easy to polymerize and high in carcinogenesis is also not needed, and the method is more suitable for large-scale industrial production.

Method for the preparation of hexahydroazepinones and hexahydroazepinoles

-

, (2008/06/13)

This disclosure describes two technical procedures for the high-yield synthesis of heterocyclic seven-membered ring-systems by Dieckmann-condensation avoiding usual dilution techniques and long reaction times. Thus, it significantly increases the overall yields of the pharmaceutically active ingredients azelastine and flezelastine, whose synthesis, starting from these seven-membered heterocyclic rings, is reported elsewhere. Yields range from 80-89%, avoiding waste and increasing economics of the synthesis.

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