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13925-08-1

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13925-08-1 Usage

Description

May be prepared by methylation of the Mannich base obtained by reacting formaldehyde and dimethylamine with dimethyl- 2, 5-pyrazine, followed by the Hoffman degradation.

Occurrence

Reported to be present in coffee, dairy products, peanuts, filberts, potato products, asparagus, fried chicken, cocoa, toasted oats, corn tortillas and mal

Preparation

By methylation of the Mannich base obtained by reacting formaldehyde and dimethylamine with dimethyl-2,5-pyrazine, followed by the Hoffman degradation

Check Digit Verification of cas no

The CAS Registry Mumber 13925-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,2 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 13925-08:
(7*1)+(6*3)+(5*9)+(4*2)+(3*5)+(2*0)+(1*8)=101
101 % 10 = 1
So 13925-08-1 is a valid CAS Registry Number.
InChI:InChI=1/C7H8N2/c1-3-7-5-8-6(2)4-9-7/h3-5H,1H2,2H3

13925-08-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-ethenyl-5-methylpyrazine

1.2 Other means of identification

Product number -
Other names 2-Methyl-5-vinyl-pyrazine

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:13925-08-1 SDS

13925-08-1Downstream Products

13925-08-1Relevant articles and documents

Comparison of pyrazines formation in methionine/glucose and corresponding Amadori rearrangement product model

Cui, Heping,Deng, Shibin,Hayat, Khizar,Ho, Chi-Tang,Zhai, Yun,Zhang, Qiang,Zhang, Xiaoming

, (2022/03/07)

The generation of pyrazines in a binary methionine/glucose (Met/Glc) mixture and corresponding methionine/glucose-derived Amadori rearrangement product (MG-ARP) was studied. Quantitative analyses of pyrazines and methional revealed that MG-ARP generated more methional compared to Met/Glc, whereas lower content and fewer species of pyrazines were observed in the MG-ARP model. Comparing the availability of α-dicarbonyl compounds generated from the Met/Glc model, methylglyoxal (MGO) was a considerably effective α-dicarbonyl compound for the formation of pyrazines during MG-ARP degradation, but glyoxal (GO) produced from MG-ARP did not effectively participate in the corresponding formation of pyrazines due to the asynchrony on the formation of GO and recovered Met. Diacetyl (DA) content was not high enough to form corresponding pyrazines in the MG-ARP model. The insufficient interaction of precursors and rapid drops in pH limited the formation of pyrazines during MG-ARP degradation. Increasing reaction temperature could reduce the negative inhibitory effect by promoting the content of precursors.

AZEPINO [4, 5-B] INDOLES AND METHODS OF USE

-

Page/Page column 250-251, (2010/05/14)

This disclosure relates to new azepino[4,5-b]indole compounds that may be used to modulate a histamine receptor in an individual. Novel compounds are described, including new 1, 2,3,4,5, 6-tetrahydroazepino[4,5-b]indoles. Pharmaceutical compositions are also provided.

Diarylbutyl octahydropyrazinopyrimidinones and methods of medical treatment using them

-

, (2008/06/13)

2,3,4,7,8,9-Substituted octahydropyrazinopyrimidinones and acid addition salts thereof. A process for the preparation of said compounds. A pharmaceutical composition comprising such a compound and a conventional carrier. A process for the preparation of said composition. Method of medical treatment of human beings and animals using such compounds.

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