13645-74-4

• 

• Basic information

  1. Product Name: 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE
  2. Synonyms: 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE;4,5-DIBROMO-2-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE;4,5-dibromo-2-methylpyridazin-3-one
  3. CAS NO:13645-74-4
  4. Molecular Formula: C₅H₄Br₂N₂O
  5. Molecular Weight: 267.9061
  6. EINECS: N/A
  7. Product Categories: N/A
  8. Mol File: 13645-74-4.mol
  9. Article Data: 6

• Chemical Properties

  1. Melting Point: 120 °C
  2. Boiling Point: 236.9 °C at 760 mmHg
  3. Flash Point: 97.1°C
  4. Appearance: /
  5. Density: 2.2g/cm³
  6. Vapor Pressure: 0.0461mmHg at 25°C
  7. Refractive Index: 1.679
  8. Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
  9. Solubility: N/A
  10. PKA: -3.66±0.20(Predicted)
  11. CAS DataBase Reference: 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE(CAS DataBase Reference)
  12. NIST Chemistry Reference: 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE(13645-74-4)
  13. EPA Substance Registry System: 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE(13645-74-4)

• 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: 13645-74-4(Hazardous Substances Data)

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13645-74-4 Usage

General Description

4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE is a chemical compound with the molecular formula C5H3Br2N2O. It is an organic compound that belongs to the pyridazinone class of chemicals. 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE is a yellow-brown solid and is commonly used in the synthesis of pharmaceuticals and agrochemicals. It has also been found to have antimicrobial properties, making it potentially useful in the development of new antibiotics. Additionally, 4,5-DIBROMO-2-METHYL-2H-PYRIDAZIN-3-ONE is a key intermediate in the production of various dyes and pigments. Its unique structure and properties make it a versatile and valuable chemical in various industrial and scientific applications.

Check Digit Verification of cas no

The CAS Registry Mumber 13645-74-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,6,4 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 13645-74:
(7*1)+(6*3)+(5*6)+(4*4)+(3*5)+(2*7)+(1*4)=104
104 % 10 = 4
So 13645-74-4 is a valid CAS Registry Number.

InChI:InChI=1/C5H4Br2N2O/c1-9-5(10)4(7)3(6)2-8-9/h2H,1H3

13645-74-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name	4,5-dibromo-2-methylpyridazin-3-one

1.2 Other means of identification

Product number	-
Other names	4,5-dibromo-2-methyl-2H-pyridazin-3-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:13645-74-4 SDS

13645-74-4Upstream product

• 5788-58-9 4,5-dibromo-3(2H)pyridazinone 
• 74-88-4 methyl iodide 
• 766-38-1 mucobromic acid 
• 22038-72-8 methyldiazene 
• 488-11-9 mucobromic acid 
• 60-34-4 methylhydrazine 

13645-74-4Downstream Products

• 214556-15-7 4-(5-Bromo-1-methyl-6-oxo-1,6-dihydro-pyridazin-4-yloxy)-benzonitrile 
• 214556-09-9 4-bromo-2-methyl-5-phenoxypyridazin-3(2H)-one 
• 874955-78-9 5-bromo-2-methyl-4-(2-pivaloylaminophenyl)pyridazin-3(2H)-one 
• 874955-80-3 4-(2-aminophenyl)-5-bromo-2-methyl-pyridazin-3(2H)-one 
• 2079886-19-2 4-bromo-2-methyl-5-(((3RS,5RS)-1-methyl-5-phenylpiperidin-3-yl)amino)pyridazin-3(2H)-one 
• 2079886-19-2 GSK4027 
• 2079886-19-2 GSK4028 
• 65269-63-8 5-amino-4-bromo-2-methyl-2H-pyridazin-3-one 
• 65269-64-9 4-amino-5-bromo-2-methylpyridazin-3(2H)-one 
• 1346155-94-9 4-bromo-2-methyl-5-(triphenylphosphoranylideneamino)pyridazin-3(2H)-one 
• 130617-22-0 2-methyl-4-bromo-5-((2-(4-(2-methoxyphenyl)-1-piperazinyl)ethyl)amino)-3(2H)-pyridazinone 
• 64178-59-2 4-bromo-5-hydroxy-2-methyl-2H-pyridazin-3-one 
• 13506-27-9 5-amino-2-methyl-2H-pyridazin-3-one 

13645-74-4Relevant articles and documents

SULFONAMIDE DERIVATIVE AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME

-

Paragraph 0076, (2019/03/28)

PROBLEM TO BE SOLVED: To provide a novel compound having an integrin α4 inhibiting action. SOLUTION: A sulfonamide derivative or pharmaceutically acceptable salt thereof has a structure represented by a general formula (I) using specific substituents A an

SULFONAMIDE DERIVATIVES AND PHARMACEUTICAL APPLICATIONS THEREOF

-

Paragraph 0065, (2016/10/08)

PROBLEM TO BE SOLVED: To provide novel compounds having excellent α4 integrin inhibitory action. SOLUTION: The invention relates to sulfonamide derivatives represented by the general formula (I) in the figure, or pharmaceutically acceptable salts thereof, or prodrugs thereof. (In the formula, a, b, c, d, D, E, R11, B, e, f, g, h and W are as defined herein.) SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT

Concurrent Alkylation-Methoxylation of 4,5-Dihalopyridazin-6-ones and Synthesis of 5-Halo-4-hydroxypyridazin-6-ones

Cho, Su-Dong,Choi, Woo-Yong,Yoon, Yong-Jin

, p. 1579 - 1582 (2007/10/03)

1-Alkyl-5-halo-4-methoxypyridazin-6-ones were synthesized from 1-alkyl-4,5-dihalopyridazin-6-ones by the concurrent alkylation-methoxylation. 1-Alkyl-5-halo-4-hydroxypyridazin-6-ones were also prepared.

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