161139-29-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161139-29-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,3 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 161139-29:
(8*1)+(7*6)+(6*1)+(5*1)+(4*3)+(3*9)+(2*2)+(1*9)=113
113 % 10 = 3
So 161139-29-3 is a valid CAS Registry Number.
161139-29-3Relevant articles and documents
A New Entry to 5-Unsubstituted 3-Acyltetramic Acids from Aldehydes
Iida, Tetsuya,Hori, Kozo,Nomura, Keiichi,Yoshii, Eiichi
, p. 1839 - 1844 (2007/10/02)
Reaction of aldehydes (prim-, sec-, and tert-) with diazoacetamide (8,9) of N-substituted glycinate in the presence of Zr(IV) chloride in CH2Cl2 affords β-keto amides (11,12) in good to high yields, which on treatment with n-Bu4NF in THF are led to N-prot
