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73637-33-9

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73637-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73637-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,3 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73637-33:
(7*7)+(6*3)+(5*6)+(4*3)+(3*7)+(2*3)+(1*3)=139
139 % 10 = 9
So 73637-33-9 is a valid CAS Registry Number.

73637-33-9Upstream product

73637-33-9Downstream Products

73637-33-9Relevant articles and documents

Synthesis of New Sulfur- and Selenium-Containing 'Donor-Acceptor-Stabilized' Systems with Central Bicycloundeca-4,6,8,10-tetraene-2,3-diylidene- or Bicycloundeca-3,6,8,10-tetraene-2,5-diylidene Groups

Neidlein, Richard,Lucchesini, Francesco

, p. 1242 - 1248 (1988)

Syntheses of starting materials 3-5 and 8 and of the S- and Se-containing 1,6-methanoannulene (= 1,6-methanobicycloundeca-1,3,5,7,9-pentaene) derivatives 12, 13, 15, and 16 are described.

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