193634-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193634-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,6,3 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 193634-78:
(8*1)+(7*9)+(6*3)+(5*6)+(4*3)+(3*4)+(2*7)+(1*8)=165
165 % 10 = 5
So 193634-78-5 is a valid CAS Registry Number.
193634-78-5Relevant articles and documents
Ring transformation of glycidic amides with ortho-metalated phenols to enantiopure 3-hydroxychromanones
Woydowski,Ziemer,Liebscher
, p. 3489 - 3491 (1999)
A novel access to hitherto unknown enantiopure 2-alkylchroman-4-ones 10 was found by a reaction of ortho-metalated O-MOM-protected phenols with Weinreb amides 8 of enantiopure cis- or trans-glycidic acids. Upon acidic hydrolysis, the resulting o-MOMO-benz