136638-85-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136638-85-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,3 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136638-85:
(8*1)+(7*3)+(6*6)+(5*6)+(4*3)+(3*8)+(2*8)+(1*5)=152
152 % 10 = 2
So 136638-85-2 is a valid CAS Registry Number.
136638-85-2Relevant academic research and scientific papers
A convergent Synthesis of Methylenomycin B and Analogues Via Selenium Assisted Cyclopenta-annelation
Mathew, Jacob
, p. 2039 - 2043 (2007/10/02)
Reaction of the lithium enolate of 4-chloro-4,5-dimethylhex-5-en-3-one 2 with benzeneselenenyl bromide at -78 deg C gives 2,3,5-trimethyl-5-phenylselenocyclopent-2-enone 3.Treatment of compound 3 with 15percent H2O2 in methylene dichloride at 0 deg C gave
