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(S)-(-)-1-amino-1-(p-fluorophenyl)methylphosphonic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

503540-12-3

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503540-12-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503540-12-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,4 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 503540-12:
(8*5)+(7*0)+(6*3)+(5*5)+(4*4)+(3*0)+(2*1)+(1*2)=103
103 % 10 = 3
So 503540-12-3 is a valid CAS Registry Number.

503540-12-3Downstream Products

503540-12-3Relevant academic research and scientific papers

A new efficient procedure for asymmetric synthesis of α-aminophosphonic acids via addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure sulfinimines

Mikolajczyk, Marian,Lyzwa, Piotr,Drabowicz, Jozef

, p. 2571 - 2576 (2002)

The addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure p-toluenesulfinimines is highly diastereoselective, affording the corresponding addition products with high efficiency (yields from 72 to 100%). The addition products were readily converted into α-amino-α-arylmethylphosphonic acids with high enantiomeric purities (from 72 to >98%).

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