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657395-03-4

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657395-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 657395-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,7,3,9 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 657395-03:
(8*6)+(7*5)+(6*7)+(5*3)+(4*9)+(3*5)+(2*0)+(1*3)=194
194 % 10 = 4
So 657395-03-4 is a valid CAS Registry Number.

657395-03-4Downstream Products

657395-03-4Relevant academic research and scientific papers

Synthesis of Heparin Oligosaccharides

Lee, Jinq-Chyi,Lu, Xin-An,Kulkarni, Suvarn S.,Wen, Yuh-Sheng,Hung, Shang-Cheng

, p. 476 - 477 (2007/10/03)

An efficient preparation of rare 2-O-benzoyl-3-O-benzyl-1,6-anhydro-β-l-idopyranose from commercially available diacetone α-d-glucose in five straightforward steps is described here. With this key building block in hand, the total syntheses of heparin oligosaccharides with three, five, seven, and nine sugar units are successfully carried out. Copyright

Biologically potent L-hexoses and 6-deoxy-L-hexoses: Their syntheses and applications

Kulkarni, Suvarn S.,Chi, Fa-Chen,Hung, Shang-Cheng

, p. 1193 - 1200 (2007/10/03)

This account describes our recent work in the development of new methodologies to prepare rare and biologically potent L-hexoses and 6-deoxy-L-hexoses, from cheapest D-glucose, via L-hexofuranoses and 1,6-anhydro-β-L-hexopyranoses as key building blocks. Their applications in the syntheses of heparin oligosaccharides, the carbohydrate moiety of bleomycin A2, and L-acovenose are also summarized here.

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