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804557-90-2

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804557-90-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 804557-90-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,5 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 804557-90:
(8*8)+(7*0)+(6*4)+(5*5)+(4*5)+(3*7)+(2*9)+(1*0)=172
172 % 10 = 2
So 804557-90-2 is a valid CAS Registry Number.

804557-90-2Upstream product

804557-90-2Downstream Products

804557-90-2Relevant academic research and scientific papers

A chemoenzymatic approach to glycopeptide antibiotics

Lin, Hening,Walsh, Christopher T.

, p. 13998 - 14003 (2004)

Many biologically active natural products are constrained by macrocyclization and modified with carbohydrates. These two types of modifications are essential for their biological activities. Here we report a chemoenzymatic approach to make carbohydrate-mo

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