Cas 19497-20-2,N1,N1,N3,N3-tetramethylguanidinium

19497-20-2

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Basic information

Product Name: N₁,N₁,N₃,N₃-tetramethylguanidinium
Synonyms:
CAS NO:19497-20-2
Molecular Formula:
Molecular Weight: 116.186
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: N₁,N₁,N₃,N₃-tetramethylguanidinium(CAS DataBase Reference)
NIST Chemistry Reference: N₁,N₁,N₃,N₃-tetramethylguanidinium(19497-20-2)
EPA Substance Registry System: N₁,N₁,N₃,N₃-tetramethylguanidinium(19497-20-2)

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: 19497-20-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 19497-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,9 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19497-20:
(7*1)+(6*9)+(5*4)+(4*9)+(3*7)+(2*2)+(1*0)=142
142 % 10 = 2
So 19497-20-2 is a valid CAS Registry Number.

19497-20-2Upstream product

19497-20-2Downstream Products

16836-76-3 tetramethylguanidinium acetate

19497-20-2Relevant academic research and scientific papers

Kinetic study of the reactions of various types of C-acids with amine bases in acetonitrile. An unusual effect of common BH+ cation on the rate constants

Galezowski, Wlodzimierz,Grzeskowiak, Iwona,Jarczewski, Arnold

, p. 1042 - 1049 (2007/10/03)

The rates of proton transfer reactions between C-acids of different types such as 1-(4-nitrophenyl)-1-nitroalkanes, 4-nitrophenylcyanomethanes, and 2,4,6-trinitrotoluene, and organic bases such as 1,1,3,3-tetrametylguanidine, 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (MTBD), and tri-n-butylamine have been measured in acetonitrile at pseudo-first-order conditions. A general equation for the rates of proton transfer reactions between C-acids and bases with product existing in two forms, ions and ion pairs, has been derived and its applicability tested. The equation works well except for reactions of 1-(4-nitrophenyl)-1-nitroalkanes with guanidines for which the second-order rate constant is diminished with concentration of guanidinium cation, while tetrabutylammonium salts accelerate the reactions. Possible reasons for this are discussed.

Proton Transfer Reactions from Ethyl Bis(4-nitrophenyl)acetate to N-bases with Guanidine-like Character in Acetonitrile

Schroeder, Grzegorz,Brzezinski, Bogumil,Leska, Boguslawa,Gierczyk, Blazej,Jarczewski, Arnold

, p. 45 - 54 (2007/10/03)

Deprotonation of ethyl bis(4-nitrophenyl)acetate by tetramethylguanidine (TMG), pentaisopropylguanidine (PiPG), 7-methyl-1,5,7-triazabicyclodec-5-ene (MTBD) and 1,5,7-triazabicyclodec-5-ene (TBD) in acetonitrile was studied by kinetic and FTIR spectroscopic methods.The results demonstrate that the kinetics of proton transfer from C-acid to N-base with guanidine-like character in acetonitrile are determined by three factors: basicity and steric hindrance in the vicinity of reacting side of N-base molecule as well as different distribution of positive charge in protonated N-bases. - Key words: ethyl bis(4-nitrophenyl)acetate; strong N-bases; proton transfer reaction; kinetics; FTIR

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