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(R)-3-(Acetylamino-methylsulfanyl)-2-{(S)-2-[(S)-2-((2S,3S)-2-tert-butoxycarbonylamino-3-methyl-pentanoylamino)-propionylamino]-4-methyl-pentanoylamino}-propionic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

142189-65-9

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142189-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142189-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,1,8 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142189-65:
(8*1)+(7*4)+(6*2)+(5*1)+(4*8)+(3*9)+(2*6)+(1*5)=129
129 % 10 = 9
So 142189-65-9 is a valid CAS Registry Number.

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