135765-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135765-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,7,6 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 135765-26:
(8*1)+(7*3)+(6*5)+(5*7)+(4*6)+(3*5)+(2*2)+(1*6)=143
143 % 10 = 3
So 135765-26-3 is a valid CAS Registry Number.
135765-26-3Relevant academic research and scientific papers
A new method for the preparation of substituted 5,6,7,8-tetrahydro-4H-I-benzopyran and 4H-pyrans by vilsmeier -haack reagent
Venugopal,Umarani,Perumal,Rajadurai
, p. 3235 - 3238 (2007/10/02)
Substituted 5,6,7,8-tetrahydrO-4H-1-benzopyran and 4H-pyran derivatives were synthesized from their corresponding substituted 1,5 diketones with vilsmeier haack reagent in moderate yields.
