Welcome to LookChem.com Sign In|Join Free

CAS

  • or

67198-83-8

Post Buying Request

67198-83-8 Suppliers

Recommended suppliersmore

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

67198-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67198-83-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,1,9 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67198-83:
(7*6)+(6*7)+(5*1)+(4*9)+(3*8)+(2*8)+(1*3)=168
168 % 10 = 8
So 67198-83-8 is a valid CAS Registry Number.

67198-83-8Relevant articles and documents

Process for 4-(D-3-amino-3-carboxypropoxy)-phenylglyoxylic acid oxime derivatives

-

, (2008/06/13)

Process for 4-(D-3-amino-3-carboxypropoxy)phenylglyoxylic acid oxime as an amino-protected ester comprising alkylating an amino-protected D-methionine silyl ester with an alkyl or benzyl iodide; cyclizing the alkylsulfonium iodide to an amino-protected D-homoserine lactone; hydrolyzing the lactone to an amino-protected D-homoserine in aqueous base; coupling, to form an ether, the amino-protected D-homoserine as an ester with an ester of 4-hydroxyphenylglyoxylic acid; and forming the oxime of the ether or alternatively coupling the D-homoserine ester with a protected-oxime of an esterified 4-hydroxyphenylglyoxylic acid. The product is useful in preparing the antibiotic FR 1923.

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 67198-83-8