621-12-5 Usage
General Description
1,4-Diphenylsemicarbazide is a chemical compound commonly used in analytical chemistry as a reagent for the determination of various substances, particularly in the field of pharmaceutical and environmental analysis. It is a white to off-white crystalline powder with a slight aromatic odor and is characterized by its hydrazine-like structure. 1,4-Diphenylsemicarbazide is mainly used in the determination of carbonyl compounds and other organic substances, as well as in the testing of water and food products for the presence of specific chemicals. It is considered to be a stable and relatively safe compound when handled and stored properly, but proper safety precautions should always be observed when working with this substance.
Check Digit Verification of cas no
The CAS Registry Mumber 621-12-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 621-12:
(5*6)+(4*2)+(3*1)+(2*1)+(1*2)=45
45 % 10 = 5
So 621-12-5 is a valid CAS Registry Number.
InChI:InChI=1/C13H13N3O/c17-13(14-11-7-3-1-4-8-11)16-15-12-9-5-2-6-10-12/h1-10,15H,(H2,14,16,17)
621-12-5Relevant articles and documents
One-pot preparation of carbamoyl benzotriazoles and their applications in the preparation of ureas, hydrazinecarboxamides and carbamic esters
Mao, Hui,Liu, Huili,Tu, Yawei,Zhong, Zhiyun,Lv, Xin,Wang, Xiaoxia
, p. 13 - 22 (2016/02/18)
Carbamoyl benzotriazoles were conveniently synthesized in one-pot from carboxylic acids, diphenyl phosphorazidate (DPPA) and 1H-benzotriazole (BtH). The reactivity and applications of carbamoyl benzotriazoles were also explored. Carbamoyl benzotriazoles react smoothly with amino acids, hydrazines and alcohols, thus providing facile access to the corresponding ureas, hydrazinecarboxamides and carbamic esters, respectively, in good to excellent yields.
Synthesis of unsymmetrical ureas and S-thiocarbamates under catalyst-free conditions in a [BMIM]BF4 ionic liquid
Hosseinzadeh, Rahman,Tajbakhsh, Mahmood,Aghili, Nora
, p. 175 - 182 (2015/05/27)
Unsymmetrical ureas and Sthiocarbamates were prepared in good to excellent yields by direct condensation of phenylurea with amines and thiols in 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4) without the addition of any additives. The [BMIM]BF4 ionic liquid is a mild medium and can be recycled and reused several times.
