4238-37-3 Usage
General Description
Ethanimidamide, N,N'-dimethyl-, also known as Dimethylformamidine or DMF is a chemical compound with the formula (CH3)2NC(H)NH. It is an organic substance that appears as a yellowish liquid and has a fishy or ammoniacal odor. It is primarily used in the manufacture of various pesticides including amitraz, an insecticide used for controlling mites and ticks in animals and crops. Ethanimidamide, N,N'-dimethyl- is largely considered toxic and harmful if ingested, inhaled, or in contact with skin, causing various health hazards such as skin and eye irritation, allergic reactions, respiratory system damage, or even cancer with prolonged exposure. Appropriate precautions are necessary while handling this compound.
Check Digit Verification of cas no
The CAS Registry Mumber 4238-37-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,3 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4238-37:
(6*4)+(5*2)+(4*3)+(3*8)+(2*3)+(1*7)=83
83 % 10 = 3
So 4238-37-3 is a valid CAS Registry Number.
4238-37-3Relevant articles and documents
Latent Nucleophilic Carbenes
Hurieva, Anastasiya,Koidan, Georgyi,Kostyuk, Aleksandr,Kyrylchuk, Andrii A.,Marchenko, Anatoliy,Rozhenko, Alexander B.,Rusanov, Eduard B.,Shvydenko, Kostiantyn
, (2021/12/27)
Using DFT and ab initio calculations, we demonstrate that noncyclic formamidines can undergo thermal rearrangement into their isomeric aminocarbenes under rather mild conditions. We synthesized the silylformamidine, for which the lowest activation energy in this process was predicted. Experimental studies proved it to serve as a very reactive nucleophilic carbene. The reactions with acetylenes, benzenes, and trifluoromethane proceeded via insertion into sp, sp2, and spCH bonds. The carbene also reacted with the functional groups, such as CHO, COR, and CN at double or triple bonds, displaying high mobility of the trimethylsilyl group. The obtained silylformamidine can be considered as a latent nucleophilic carbene. It can be prepared in bulk quantities, stored, and used when the need arises. Calculation results predict similar behavior for some other silylated formamidines and related compounds.
