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199438-60-3

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199438-60-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199438-60-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,3 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199438-60:
(8*1)+(7*9)+(6*9)+(5*4)+(4*3)+(3*8)+(2*6)+(1*0)=193
193 % 10 = 3
So 199438-60-3 is a valid CAS Registry Number.

199438-60-3Downstream Products

199438-60-3Relevant articles and documents

Synthesis of wiendendiol-A and wiedendiol-B from Labdane diterpenes

Barrero, Alejandro F.,Alvarez-Manzaneda, Enrique J.,Chahboun, Rachid

, p. 5635 - 5650 (2007/10/03)

Two efficient enantiospecific syntheses of wiedendiol-A (1) from (-)- sclareol (7), via 11-bromo-8-drimene (11) and 8-drimen-11-al (3), are reported. The first enantiospecific synthesis of wiedendiol-B (2), via 85.95- driman-11-al (26), by two alternative routes starting from 7 and (+)-cis- abienol (8) is also described. 21 prepared from protocatchhualdehyde (17) was used as somatic synthon for preparing 1 and 2.

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