Welcome to LookChem.com Sign In|Join Free

CAS

  • or

137839-94-2

Post Buying Request

137839-94-2 Suppliers

Recommended suppliersmore

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

137839-94-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137839-94-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,3 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137839-94:
(8*1)+(7*3)+(6*7)+(5*8)+(4*3)+(3*9)+(2*9)+(1*4)=172
172 % 10 = 2
So 137839-94-2 is a valid CAS Registry Number.

137839-94-2Downstream Products

137839-94-2Relevant articles and documents

Further Synthetic Studies in Penicillin C(6)-Substitution Including the Versatile 6&α-Succinimidooxy Leaving Group

Milner, Peter H.,Stachulski, Andrew V.

, p. 2343 - 2352 (2007/10/02)

Treatment of benzyl 6α-dimethylamino-6β-phenoxyacetamidopenicillanate 3 with methyl iodide led, in the absence of added nucleophiles, to the oxygen-bridged dimer 8 via adventitious water present.Added methanol or water led to the 6α-methoxy or -hydroxy pr

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 137839-94-2