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77547-13-8

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77547-13-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77547-13-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,4 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77547-13:
(7*7)+(6*7)+(5*5)+(4*4)+(3*7)+(2*1)+(1*3)=158
158 % 10 = 8
So 77547-13-8 is a valid CAS Registry Number.

77547-13-8Relevant articles and documents

SYNTHESIS OF TRANS-4,8,12,15,15-PENTAMETHYLBICYCLOPENTADECA-3E,7Z,12Z-TRIENE, A GEOMETRICAL ISOMER OF ANHYDROVERTICILLOL

Kumagai, Takashi,Ise, Fumiaki,Uyehara, Tadao,Kato, Tadahiro

, p. 25 - 28 (2007/10/02)

A 7Z-isomer of anhydroverticillol skeleton was constructed in 15 percent yield when the 7E allyl bromide having secoverticillol framework was treated with LiN(TMS)2.Reductive removal of the SO2Ph group furnished a geometrical isomer of anhydroverticillol.

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