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55758-03-7

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55758-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55758-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,5 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55758-03:
(7*5)+(6*5)+(5*7)+(4*5)+(3*8)+(2*0)+(1*3)=147
147 % 10 = 7
So 55758-03-7 is a valid CAS Registry Number.

55758-03-7Relevant articles and documents

Diels-alder trapping of ortho-quinone methides. A new entry to substituted xanthene- 1,4-diones

Giraud, Luc,Giraud, Anne

, p. 1153 - 1160 (2007/10/03)

Highly regioselective Diels-Alder reactions of a non-protected β-hydroxy quinone have been achieved after formation of chelated lithium alkoxides. In this report, we demonstrate on a model system, that the selectivity of reactions based on 1,3-dioxy-subst

SYNTHESIS OF DIQUINONE DERIVATIVES OF DEUTEROPORPHYRIN IX FOR THE STUDY OF THE FIRST STAGE IN THE PROCESS OF PHOTOSYNTHESIS

Borovkov, V. V.,Evstigneeva, R. P.,Makova, S. Z.

, p. 142 - 147 (2007/10/02)

Diquinone derivatives of deuteroporphyrin IX containing covalent bridges of different lengths between the chromophores have been synthesized.The compounds were prepared by the condensation of hydroxy-quinones with deuteroporphyrin IX using a mixed anhydri

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