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87848-77-9

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87848-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87848-77-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,4 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87848-77:
(7*8)+(6*7)+(5*8)+(4*4)+(3*8)+(2*7)+(1*7)=199
199 % 10 = 9
So 87848-77-9 is a valid CAS Registry Number.

87848-77-9Relevant articles and documents

Reaction of methyl 4,5-epoxy-(2E)-pentenoate with arenes. II. Application to the synthesis of(±)-curcudiol, (±)-curcuphenol, (±)-curcuhydroquinone, and(±)-curcuquinone

Ono,Yamamoto,Akita

, p. 553 - 558 (2007/10/02)

Four bisabolane sesquiterpenes, (±)-curcudiol (2), (±)-curcuphenol (3), (±)-curcuhydroquinone (5) and (±)-curcuquinone (6), were synthesized based on the reaction of methyl 4,5-epoxy-(2E)-pentenoate (1) with methoxytoluenes in the presence of boron trifluoride etherate.

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