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428854-21-1

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428854-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 428854-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,8,5 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 428854-21:
(8*4)+(7*2)+(6*8)+(5*8)+(4*5)+(3*4)+(2*2)+(1*1)=171
171 % 10 = 1
So 428854-21-1 is a valid CAS Registry Number.

428854-21-1Upstream product

428854-21-1Relevant articles and documents

Novel sulfonamide-substituted pyrazolopyridine derivatives

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, (2008/06/13)

The invention relates to novel pyrazolopyridine derivatives of formula (I) wherein R1 represents H, Cl or NH2, and R2 and R3 form; together with the heteroatoms to which they are bonded, a five to six-membered heterocycle which can be saturated or partially unsaturated, can optionally contain at least one other heteroatom from the group N, O, S and can be optionally substituted. The invention also relates to salts, isomers and hydrates of said derivatives, in the form of stimulators of soluble guanylate cyclase and as agents for treating cardiovascular diseases, hypertonia, thrombo-embolic diseases and ischaemia, sexual dysfunction, inflammations, and diseases of the central nervous system.

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