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40127-42-2

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40127-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40127-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,2 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40127-42:
(7*4)+(6*0)+(5*1)+(4*2)+(3*7)+(2*4)+(1*2)=72
72 % 10 = 2
So 40127-42-2 is a valid CAS Registry Number.

40127-42-2Downstream Products

40127-42-2Relevant articles and documents

Nα-Benzyloxycarbonylamino acids in solid phase peptide synthesis

Sivanandaiah, K. M.,Babu, V. V. Suresh,Renukeshwar, H. C.,Gangadhar, B. P.

, p. 618 - 619 (2007/10/02)

Nα-Benzyloxycarbonyl (Z)-amino acids, which are less expensive than t-butyloxycarbonyl-9 or 9-fluorenylmethyoxylcarbonylamino acids, are generally not empolyed in solid phase peptide synthesis as the available methods for deprotection of Z group would also cleave the peptide from the anchoring resin.This problem has now been overcome by using the mild and nonhydrolytic reagent, iodotrichlorosilane, which requires about 45 min for deprotection of Z group on the solid phase.This has been demonstrated by the synthesis of the model peptide, Leu-Ala-Gly-Val and its amide.

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