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148289-52-5

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148289-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148289-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,2,8 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 148289-52:
(8*1)+(7*4)+(6*8)+(5*2)+(4*8)+(3*9)+(2*5)+(1*2)=165
165 % 10 = 5
So 148289-52-5 is a valid CAS Registry Number.

148289-52-5Relevant articles and documents

Stereoselective synthesis of N,O,O,O-tetraacetyl-D-ribo-phytosphingosine, N,O,O-triacetyl-D-erythro-sphingosine and N,O,O-triacetyl sphingonine from a common chiral intermediate derived from D-mannitol

Mettu, Ravinder,Thatikonda, Narendar Reddy,Olusegun, Oladoye Sunday,Vishvakarma, Ramesh,Vaidya, Jayathirtha Rao

, p. 421 - 436 (2013/11/06)

An efficient protocol for the stereoselective synthesis of tetraacetyl-D-ribo-hytosphingosine, triacetyl-D-erythro-sphingosine and triacetyl sphinganine has been devised from a common chiral intermediate derived from commercially available D-mannitol. The key steps involved are Sharpless epoxidation, Miyashita C(2) selective endo mode azide opening of 2,3-epoxy alcohol, and selective E-Wittig olefination. ARKAT-USA, Inc.

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