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1258204-09-9

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1258204-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258204-09-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,2,0 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1258204-09:
(9*1)+(8*2)+(7*5)+(6*8)+(5*2)+(4*0)+(3*4)+(2*0)+(1*9)=139
139 % 10 = 9
So 1258204-09-9 is a valid CAS Registry Number.

1258204-09-9Upstream product

1258204-09-9Relevant articles and documents

Tertiary aminourea-catalyzed enantioselective iodolactonization

Veitch, Gemma E.,Jacobsen, Eric N.

, p. 7332 - 7335 (2010)

Binding the anion : A highly enantioselective iodolactonization of 5-hexenoic acids has been achieved using a tertiary aminourea-catalyst (see scheme). The use of catalytic iodine in this process is critical to enhancing both the reactivity and enantioselectivity of the stoichiometric I+ source. The mechanism is proposed to involve binding of an iodonium imidate intermediate by the H-bond donor catalyst.

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