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244770-99-8

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244770-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 244770-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,4,7,7 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 244770-99:
(8*2)+(7*4)+(6*4)+(5*7)+(4*7)+(3*0)+(2*9)+(1*9)=158
158 % 10 = 8
So 244770-99-8 is a valid CAS Registry Number.

244770-99-8Relevant articles and documents

New syntheses of the benzoquinone primin and its water-soluble analog primin acid via Heck reactions

Mabic,Vaysse,Benezra,Lepoittevin

, p. 1127 - 1134 (2007/10/03)

The syntheses of primin, 2-methoxy-6-pentylbenzoquinone (1), a major allergen of Primula obconica, and its water-soluble acid analog primin acid (2) are reported. The key steps were ortho-lithiation reactions of protected hydroquinones, palladium coupling (Heck) reactions, and salcomine-catalyzed oxidations of phenols to quinones.

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