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84202-87-9

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84202-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84202-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,0 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 84202-87:
(7*8)+(6*4)+(5*2)+(4*0)+(3*2)+(2*8)+(1*7)=119
119 % 10 = 9
So 84202-87-9 is a valid CAS Registry Number.

84202-87-9Downstream Products

84202-87-9Relevant articles and documents

SYNTHESIS OF CHEMICALLY STABLE PROSTACYCLIN ANALOGS

Bannai, Kiyoshi,Toru, Takeshi,Oba, Takeo,Tanaka, Toshio,Noriaki, Okamura,et al.

, p. 3807 - 3820 (2007/10/02)

Syntheses of several stable PGI2 analogs substituted by an electron-withdrawing substituent at C-5 or C-7 are described.Reaction of PGI2 methyl ester (1) with benzenesulfenyl chloride gave (5E)-5-phenylthio-PGI2 (2) or (5R)-5-phenylthio-Δ6-PGI1 (5) according to the reaction condition employed.Allyl sulfide 5 was transformed into (7S)-7-hydroxy-PGI2 (11) and (7S)-7-acetoxy PGI2 (12) via stereocontrolled sulfoxide-sulfenate rearrangement, and alcohol 11 was further transformed into (7S)-7-fluoro-PGI2 (14).These PGI2 analogs were found much more stable than PGI2.

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