49829-70-1 Usage
General Description
Phenyl N-phenylbenzenecarbohydrazonothioate, also known as PBTH, is a chemical compound with the molecular formula C18H14N2S. It is a yellow crystalline solid that is insoluble in water but soluble in organic solvents. PBTH is commonly used as a reagent in organic synthesis, specifically in the formation of hydrazones in the presence of aldehydes or ketones. It is also utilized as a pesticide and insecticide due to its insecticidal properties. PBTH has been found to have moderate toxicity levels in mammalian studies and should be handled with caution.
Check Digit Verification of cas no
The CAS Registry Mumber 49829-70-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,2 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 49829-70:
(7*4)+(6*9)+(5*8)+(4*2)+(3*9)+(2*7)+(1*0)=171
171 % 10 = 1
So 49829-70-1 is a valid CAS Registry Number.
49829-70-1Relevant articles and documents
NEW HETEROCYCLIC SYNTHESES FROM α-HALOHYDRAZONES. REARRANGEMENTS OF α-ARYLAMINO- AND α-ARYLTHIOACYLHYDRAZONES IN ACID MEDIUM
Benincori, Tiziana,Fusco, Raffaello,Sannicolo, Franco
, p. 635 - 639 (2007/10/02)
α-(Arylamino)-acylhydrazones 1d-f react with polyphosphoric acid to give 2-arylazoindoles 3a-d through a cyclodehydration process involving the arylamino moiety.A deviation from the expected course is observed with the aldehydic substrates 1a-c which give the isatine derivatives 2a-c. α-(Arylthio)-acylhydrazones 1g-i give the 3-(arylthio)cinnolines 4b-d and 4-aminophenyl phenylsulphide 5, the latter being formed through an unprecedented rearrangement.A similar rearrangement is shown by α-phenylthio-α-phenylhydrazonobenzaldehyde, 6, which give 2-aminophenyl phenyl sulphide, 7.
