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136869-44-8

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136869-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136869-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,6 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136869-44:
(8*1)+(7*3)+(6*6)+(5*8)+(4*6)+(3*9)+(2*4)+(1*4)=168
168 % 10 = 8
So 136869-44-8 is a valid CAS Registry Number.

136869-44-8Downstream Products

136869-44-8Relevant articles and documents

Diels-alder trapping of ortho-quinone methides. A new entry to substituted xanthene- 1,4-diones

Giraud, Luc,Giraud, Anne

, p. 1153 - 1160 (2007/10/03)

Highly regioselective Diels-Alder reactions of a non-protected β-hydroxy quinone have been achieved after formation of chelated lithium alkoxides. In this report, we demonstrate on a model system, that the selectivity of reactions based on 1,3-dioxy-subst

Fluoride as leaving group in SRN1 reactions of a tetrasubstituted-1,4-benzoquinone

Crozet, Michel P.,Giraud, Luc,Sabuco, Jean-Francois,Vanelle, Patrice

, p. 1063 - 1064 (2007/10/02)

2-Fluoromethyl-3,5,6-trimethyl-1,4-benzoquinone was synthesized and its reactivity in SRN1 reactions compared to the reactivity of the chloro derivative previously described. This study reports the first examples of the displacement of the fluoride in SRN1 reactions involving a substitution at an sp3 carbon atom.

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