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2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI), also known as mequindox, is a cyclic organic compound with the molecular formula C10H10N2O2. It features a quinoxaline ring composed of two nitrogen and two carbon atoms, and is commonly utilized in the livestock industry as a feed additive to enhance growth and improve feed efficiency. Mequindox also has applications as an antibacterial agent in veterinary medicine, although its use has been a subject of controversy due to potential adverse effects on human health and the environment.

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  • 126990-86-1 Structure
  • Basic information

    1. Product Name: 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI)
    2. Synonyms: 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI);1,8-DIMETHYL-1,4-DIHYDROQUINOXALINE-2,3-DIONE
    3. CAS NO:126990-86-1
    4. Molecular Formula: C10 H10 N2 O2
    5. Molecular Weight: 0
    6. EINECS: N/A
    7. Product Categories: PIPERIDINE
    8. Mol File: 126990-86-1.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI)(CAS DataBase Reference)
    10. NIST Chemistry Reference: 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI)(126990-86-1)
    11. EPA Substance Registry System: 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI)(126990-86-1)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 126990-86-1(Hazardous Substances Data)

126990-86-1 Usage

Uses

Used in Livestock Industry:
2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI) is used as a feed additive for promoting growth and improving feed efficiency in livestock. It aids in the enhancement of animal productivity by optimizing the nutritional value of feed and supporting overall health.
Used in Veterinary Medicine:
In the veterinary field, 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI) is employed as an antibacterial agent to combat bacterial infections in animals. Its antimicrobial properties contribute to disease prevention and treatment in livestock.
However, due to concerns regarding its potential carcinogenic and teratogenic effects, as well as the possibility of accumulation in animal tissues, the use of 2,3-Quinoxalinedione,1,4-dihydro-1,8-dimethyl-(9CI) has been banned in some countries. Ongoing research is focused on understanding the full extent of its potential risks to ensure the safety of both animal and human health, as well as the preservation of the environment.

Check Digit Verification of cas no

The CAS Registry Mumber 126990-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,9 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 126990-86:
(8*1)+(7*2)+(6*6)+(5*9)+(4*9)+(3*0)+(2*8)+(1*6)=161
161 % 10 = 1
So 126990-86-1 is a valid CAS Registry Number.

126990-86-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,5-dimethyl-1H-quinoxaline-2,3-dione

1.2 Other means of identification

Product number -
Other names 1,8-DIMETHYL-1,4-DIHYDROQUINOXALINE-2,3-DIONE

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:126990-86-1 SDS

126990-86-1Downstream Products

126990-86-1Relevant articles and documents

1,2,4-Triazolo[4,3-a]quinoxaline-1,4-diones as antiallergic agents

Loev,Musser,Brown,Jones,Kahen,Huang,Khandwala,Sonnino-Goldman,Leibowitz

, p. 363 - 366 (2007/10/02)

A series of new 1,4-dihydro-1,2,4-triazolo[4,3-a]quinoxaline-1,4-diones has been reported. These compounds were tested as inhibitors of antigen-induced release of histamine (AIR) in vitro from rat peritoneal mast cells (RMC) and as inhibitors of IgE-mediated rat passive cutaneous anaphylaxis (PCA). Most of this new class of antiallergic agents showed good activity in the RMC and PCA tests. The most potent compound, 2-acetyl-7-chloro-5-n-propyl-1,2,4-triazolo[4,3-a]quinoxaline-1,4-dione, with an I50 value of 0.1 μM, is 30 times more potent than disodium cromoglycate (DSCG) in the RMC assay.

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