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203318-14-3

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203318-14-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203318-14-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,3,1 and 8 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 203318-14:
(8*2)+(7*0)+(6*3)+(5*3)+(4*1)+(3*8)+(2*1)+(1*4)=83
83 % 10 = 3
So 203318-14-3 is a valid CAS Registry Number.

203318-14-3Upstream product

203318-14-3Downstream Products

203318-14-3Relevant articles and documents

Total synthesis of sollasin a and sollasin d via photocycloaddition of methyl 2,4-dioxopentanoate to methyl E-2-methyl-2-butenoate

Hatsui, Toshihide,Taga, Masashi,Mori, Akira,Takeshita, Hitoshi

, p. 113 - 114 (1998)

Starting from photocycloaddition of methyl 2,4-dioxopentanoate to methyl tiglate, an electron-deficient olefin, methyl-migrated monocyclofarnesyl sesquiterpenoids, d,l-sollasin a and d, antibacterial compounds, were synthesized.

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