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135559-99-8

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135559-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135559-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,5,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 135559-99:
(8*1)+(7*3)+(6*5)+(5*5)+(4*5)+(3*9)+(2*9)+(1*9)=158
158 % 10 = 8
So 135559-99-8 is a valid CAS Registry Number.

135559-99-8Downstream Products

135559-99-8Relevant articles and documents

A series of sesquiterpenes with a 7α-isopropyl side chain and related compounds isolated from Curcuma wenyujin

Harimaya,Gao,Ohkura,Kawamata,Iitaka,Guo,Inayama

, p. 843 - 853 (2007/10/02)

Sesquiterpenoids possessing a 7α-isopropyl group, such as curcumol (1a), curdione (2a), curcumalactone (3), and a new epoxy germacrane, (1R,10R)-epoxy-(-)-1,10-dihydrocurdione (5a), were isolated from the essential oil of Curcuma wenyujin. Other related new sesquiterpenes, neocurdione (4) and (1S,10S),(4S,5S)-germacrone-1(10),4-diepoxide (6) were also isolated from this plant. The stereostructures and absolute configurations of these sesquiterpenes were established on the basis of spectroscopic and chemical data as well as X-ray crystallographic analyses.

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