Welcome to LookChem.com Sign In|Join Free

CAS

  • or

177897-89-1

Post Buying Request

177897-89-1 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

177897-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177897-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,8,9 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 177897-89:
(8*1)+(7*7)+(6*7)+(5*8)+(4*9)+(3*7)+(2*8)+(1*9)=221
221 % 10 = 1
So 177897-89-1 is a valid CAS Registry Number.

177897-89-1Downstream Products

177897-89-1Relevant articles and documents

Amino acids and peptides. XLIX. Synthesis of γ-2-adamantylglutamate and its evaluation for peptide synthesis

Okada, Yoshio,Mu

, p. 88 - 92 (2007/10/03)

2-Adamantyl ester was examined for the selective protection of the γ- carboxyl function of the Glu residue, with the aim of preventing side reactions during peptide synthesis and increasing the solubility in organic solvents of peptide intermediates containing the Glu residue. Z-Glu(O-2- Ada)-OBzl was synthesized from Z-Glu-OBzl and adamantan-2-ol with the aid of dicyclohexylcarbodiimide (DCC) and 4-N,N-dimethylaminopyridine (DMAP) in AcOEt. The 2-adamantyl ester group was stable to TFA, 20% piperidine/DMF and 10% Et3N/DMF up to 24 h and was easily removed by MSA, 1 M TFMSA-thioanisole in TFA, and HF. Therefore, H-Glu-(O-2-Ada)-OH could be applied for peptide synthesis in both solution and solid phase methods in combination with a Boc or Fmoc group as the N2-protecting group. Boc-Glu(O-2-Ada)-OH was successfully employed for the synthesis of Bz-Ile-Glu-Gly-Arg-CH2Cl, an irreversible inhibitor of factor Xa.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 177897-89-1