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50622-67-8

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50622-67-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50622-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,2 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 50622-67:
(7*5)+(6*0)+(5*6)+(4*2)+(3*2)+(2*6)+(1*7)=98
98 % 10 = 8
So 50622-67-8 is a valid CAS Registry Number.

50622-67-8Downstream Products

50622-67-8Relevant articles and documents

New method for the synthesis of pyrromethanes

Okada, Kunisuke,Saburi, Kiyoshi,Nomura, Keishi,Tanino, Hideo

, p. 2127 - 2131 (2007/10/03)

Coupling reaction of 2-mercaptobenzothiazolylmethylpyrrole with α-free pyrrole in the presence of silver(I) triflate proceeds smoothly at room temperature to give a pyrromethane in excellent yield. The azafulvenium ion, an active form that reacts with α-f

BIOSYNTHESIS OF PORPHYRINS AND RELATED MACROCYCLES. PART 27. SYNTHESES OF MODIFIED HYDROXYMETHYLBILANES AND STUDIES OF THEIR CHEMICAL AND BIOLOGICAL PROPERTIES.

Anderson, Paul C.,Battersby, Alan R.,Broadbent, Hugo A.,Fookes, Christopher J. R.,Hart, Graham J.

, p. 3123 - 3136 (2007/10/02)

The biosynthetic pathway to uroporphyrinogen-III, the parent macrocycle for all the pigments of life, involves the formation and ring-closure of an hydroxymethylbilane.The non-enzymic ring-closure of this bilane is studied under different pH conditions.Also octamethyl esters of related bilanes are synthesised which have either a cyano or a methyl group blocking position-19 which is free on the terminal ring-D of the natural bilane.Studies are made of the ring-closure of these substituted bilanes under acidic conditions.The conclusion is reached that there is a strong preference for non-enzymic ring-closure of an hydroxymethylbilane to occur at the terminal carbon atom (position-19).The octa-acids derived from the cyano and methyl substituted bilanes inhibit the action of cosynthetase on the natural hydroxymethylbilane.

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