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190185-60-5

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190185-60-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190185-60-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,1,8 and 5 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 190185-60:
(8*1)+(7*9)+(6*0)+(5*1)+(4*8)+(3*5)+(2*6)+(1*0)=135
135 % 10 = 5
So 190185-60-5 is a valid CAS Registry Number.

190185-60-5Downstream Products

190185-60-5Relevant articles and documents

Concise synthesis of (+)-β-benzyl γ-butyrolactones from butynediol

Kamlage,Sefkow,Zimmermann,Peter

, p. 77 - 80 (2002)

The synthesis of optically active β-benzyl-γ-butyrolactones from butynediol via four transition metal catalysed reactions is reported. Key reactions are the hitherto unknown enantioselective hydrogenation of 2-benzyl-2-buten-1,4-diols using Ir(I) phosphinooxazoline catalysts and the regiocontrolled oxidation of the resulting 2-benzyl-1,4-butanediols to the β-substituted butyrolactones.

The absolute stereochemistry of the ester functions of fumonisin B1

Edwards, Oliver E.,Blackwell, Barbara A.,Driega, Alex B.,Bensimon, Corrine,ApSimon, John W.

, p. 4515 - 4518 (2007/10/03)

Synthesis of an optically active γ-lactone related to tricarballylic acid (TCA) and correlation of this to the same lactone derived from the two sidechain TCA esters at C-14 and C-15 of fumonisin B1 has established that these esters have the R configuration.

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