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94903-42-1

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94903-42-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94903-42-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,9,0 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 94903-42:
(7*9)+(6*4)+(5*9)+(4*0)+(3*3)+(2*4)+(1*2)=151
151 % 10 = 1
So 94903-42-1 is a valid CAS Registry Number.

94903-42-1Relevant articles and documents

Synthesis of (2R)-2-bromodehydroquinic acid and (2R)-2-fluorodehydroquinic acid

Manthey, Michael K.,Gonzalez-Bello, Concepcion,Abell, Chris

, p. 625 - 628 (2007/10/03)

(2R)-2-Bromodehydroquinic acid and (2R)-2-fluorodehydroquinic acid ? have each been synthesised in six steps from quinic acid via the common intermediate 6. The syntheses exploit the selective protection of the 4-hydroxy group of the quinic acid lactone 3 with tert-butyldimethylsilyl chloride. ? IUPAC names: (1S,2R,4S,5R)-2-bromo-1,4,5-trihydroxy-3-oxocyclohexanecarboxylic acid and (1S,2R,4S,5R)-2-fluoro-1,4,5-trihydroxy-3-oxocyclohexanecarboxylic acid, respectively.

(-)-Methyl 4,5-Benzylidene-4-epi-shikimate: An Intermediate for the Synthesis of (-)-Chorismic Acid and Analogues

Lesuisse, Dominique,Berchtold, Glenn A.

, p. 888 - 890 (2007/10/02)

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