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1190844-34-8

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1190844-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1190844-34-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,0,8,4 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1190844-34:
(9*1)+(8*1)+(7*9)+(6*0)+(5*8)+(4*4)+(3*4)+(2*3)+(1*4)=158
158 % 10 = 8
So 1190844-34-8 is a valid CAS Registry Number.

1190844-34-8Relevant articles and documents

METHOD FOR PRODUCING POLYHYDRIC PHENOL

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Page/Page column 12-13, (2012/03/10)

The present invention is a method for producing a polyhydric phenol, including the following steps (a) to (d): (a) a first step of producing (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexcene-1-one from 2-deoxy-scyllo-inosose by a dehydration reaction; (b) a second step of producing 1,2,4-trihydroxybenzene from the (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexene-1-one obtained in the first step by a dehydration reaction; (c) a third step of producing 4-hydroxycyclohexane-1,3-dione from the 1,2,4-trihydroxybenzene by a catalytic hydrogenation reaction with the use of a metal catalyst; and (d) a fourth step of producing hydroquinone by heating the 4-hydroxycyclohexane-1,3-dione.

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