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1338586-56-3

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1338586-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338586-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,5,8 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1338586-56:
(9*1)+(8*3)+(7*3)+(6*8)+(5*5)+(4*8)+(3*6)+(2*5)+(1*6)=193
193 % 10 = 3
So 1338586-56-3 is a valid CAS Registry Number.

1338586-56-3Downstream Products

1338586-56-3Relevant articles and documents

Syntheses of pseudoceramines A-D and a new synthesis of spermatinamine, bromotyrosine natural products from marine sponges

Hillgren, J. Mikael,Oeberg, Christopher T.,Elofsson, Mikael

, p. 1246 - 1254 (2012/03/07)

Herein we report the total syntheses of pseudoceramine A-D (2-5) and spermatinamine (1) isolated from the marine sponge Pseudoceratina sp. Direct acyl substitution of α-hydroxyiminoesters with amine nucleophiles was developed as a key transformation. The synthetic compounds confirm the reported structures and importantly gives access to non-symmetrical spermine based natural products carrying two different bromotyrosine building blocks. Our new synthesis of spermatinamine is two steps shorter and more efficient than the previously reported sequence. The Royal Society of Chemistry 2012.

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