1154-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1154-90-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,5 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1154-90:
(6*1)+(5*1)+(4*5)+(3*4)+(2*9)+(1*0)=61
61 % 10 = 1
So 1154-90-1 is a valid CAS Registry Number.
1154-90-1Relevant articles and documents
New derivatives of 6-phenylcomanic acid
Usachev,Obydennov,Kodess,Roeschenthaler,Sosnovskikh
, p. 1248 - 1252 (2009)
Ethyl 6-phenylcomanic acid with hydrazine hydrate and hydroxylamine gives 4-oxo-6-phenyl-4H/-pyran-2-carbohydrazide and 4-oxo-6-phenyl-4H-pyran-2- carbohydroxamic acid, whereas 6-phenylcomanic acid with ammonia in aqueous DMSO gives 4-hydroxy-6-phenylpico