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812664-94-1

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812664-94-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 812664-94-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,2,6,6 and 4 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 812664-94:
(8*8)+(7*1)+(6*2)+(5*6)+(4*6)+(3*4)+(2*9)+(1*4)=171
171 % 10 = 1
So 812664-94-1 is a valid CAS Registry Number.

812664-94-1Upstream product

812664-94-1Downstream Products

812664-94-1Relevant articles and documents

PROCESS FOR PREPARING 2-[(PYRIDINYL)METHYL]SULFINYL-SUBSTITUTED BENZIMIDAZOLES AND NOVEL CHLORINATED DERIVATIVES OF PANTOPRAZOLE

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Page 26-27, (2008/06/13)

The present invention provides a process comprising admixing a thioether with about 1.05 to about 1.6 molar equivalents of an active chlorine-containing oxidant, preferably sodium hypochlorite, and about 2.5 to about 5.0 molar equivalents of an alkali metal base; and recovering a sulfoxide that is preferably pantoprazole, lansoprazole, omeprazole, or rabeprazole. The process may further comprise contacting the sulfoxide with a source of sodium ions, preferably sodium hydroxide, to produce the sodium salt of the sulfoxide. The invention also relates to novel chlorinated derivatives of pantoprazole including 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)-chloromethyl]sulfinyl]-1H- benzimidazole and 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)-chlorohydroxymethyl] sulfinyl]-1H-benzimidazole and processes for making them. The invention also relates to processes of quantifying and identifying a compound other than pantoprazole in a mixture of pantoprazole and at least one other compound.

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