Welcome to LookChem.com Sign In|Join Free

CAS

  • or

189245-00-9

Post Buying Request

189245-00-9 Suppliers

Recommended suppliersmore

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

189245-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189245-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,4 and 5 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189245-00:
(8*1)+(7*8)+(6*9)+(5*2)+(4*4)+(3*5)+(2*0)+(1*0)=159
159 % 10 = 9
So 189245-00-9 is a valid CAS Registry Number.

189245-00-9Relevant articles and documents

Efficient synthesis of (S)-(-)- and (R)-(+)-enantiomers of 15-deoxyspergualin (15-DSG)

Wang, Xuebao,Thottathil, John

, p. 3665 - 3669 (2000)

An efficient synthesis of the (S)-(-)- and (R)-(+)-enantiomers of 15-deoxyspergualin (15-DSG) is reported. The synthesis involves preparative HPLC separation and subsequent hydrogenolysis of two diastereoisomers 10a and 10b of fully protected 15-DSG penultimates. Alternatively, diastereomerically pure amide 10b (97% de) was also prepared from acid 8b (97% de), which was obtained via crystallization of a 1:1 diastereomeric mixture of 8a and 8b. Copyright (C) 2000 Elsevier Science Ltd.

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 189245-00-9