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113084-12-1

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113084-12-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113084-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,0,8 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 113084-12:
(8*1)+(7*1)+(6*3)+(5*0)+(4*8)+(3*4)+(2*1)+(1*2)=81
81 % 10 = 1
So 113084-12-1 is a valid CAS Registry Number.

113084-12-1Upstream product

113084-12-1Relevant articles and documents

Synthesis and Absolute Stereochemistry of Chiral γ-Ionone and Dihydro-γ-ionone

Oritani, Takayuki,Yamashita, Kyohei

, p. 1271 - 1276 (2007/10/02)

The optical resolution of (+/-)-α-cyclogeranic acid (4) with (-)-α-methylbenzylamine gave (-)-(S)-α-cyclogeranic acid (4).Epoxidation of (-)-(S)-methyl α-cyclogeranate (5), followed by reduction with lithium aluminium hydride, gave mainly (-)-(1R,2R)-2-hydroxy-2,6,6-trimethyl-1-cyclohexanemethanol (7b), which was oxidized with pyridinium chlorochromate to give (-)-hydroxyaldehyde 8.The reaction of aldehyde 8 with 2-oxopropylidenetriphenylphosphorane gave (-)-(1'S,2'R)-2',3'-dihydro-2'-hydroxy-α-ionone (9).The thermal decomposition of (1'S)-2'-acetoxy-2',3'-dihydro-α-ionone (10) gave (-)-(S)-α-ionone (2) and (+)-(S)-γ-ionone (1).The partial hydrogenation of (+)-(S)-γ-ionone (1) gave (+)-(S)-dihydro-γ-ionone (3).

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