Cas 523987-91-9,3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline

523987-91-9

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Basic information

Product Name: 3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline
Synonyms: 3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline
CAS NO:523987-91-9
Molecular Formula:
Molecular Weight: 397.228
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline(CAS DataBase Reference)
NIST Chemistry Reference: 3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline(523987-91-9)
EPA Substance Registry System: 3-(4-bromobenzoyl)-4-(3-chromonyl)-2-pyrazoline(523987-91-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 523987-91-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 523987-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,3,9,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 523987-91:
(8*5)+(7*2)+(6*3)+(5*9)+(4*8)+(3*7)+(2*9)+(1*1)=189
189 % 10 = 9
So 523987-91-9 is a valid CAS Registry Number.

523987-91-9Upstream product

186581-53-3 diazomethane

523987-91-9Downstream Products

523987-91-9Relevant academic research and scientific papers

Synthesis of 3-aroyl-4-(3-chromonyl)-2-pyrazolines

Levai, Albert,Jeko, Jozsef

, p. 1333 - 1336 (2002)

New 3-aroyl-4-(3-chromonyl)-2-pyrazolines have been synthesized by the reaction of 3-(3-aryl-3-oxopropenyl)chromen-4-ones and diazomethane. Some of these 2-pyrazolines have also been N-acylated with a mixture of anhydrous pyridine and acetic anhydride or

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