Welcome to LookChem.com Sign In|Join Free

CAS

  • or

67895-41-4

Post Buying Request

67895-41-4 Suppliers

Recommended suppliersmore

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

67895-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67895-41-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,9 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67895-41:
(7*6)+(6*7)+(5*8)+(4*9)+(3*5)+(2*4)+(1*1)=184
184 % 10 = 4
So 67895-41-4 is a valid CAS Registry Number.

67895-41-4Upstream product

67895-41-4Downstream Products

67895-41-4Relevant articles and documents

Revision of Structures of Nellionol and Dehydronellionol

Matsumoto, Takashi,Imai, Sachihiko,Takeda, Shoji,Mitsuki, Masanori

, p. 2013 - 2017 (2007/10/02)

The structures of nellionol and dehydronellionol were revised respectively to 6α,11,12,16-tetrahydroxyabieta-8,11,13-trien-7-one (12) and 6,11,12,16-tetrahydroxyabieta-5,8,11,13-tetraen-7-one (13) by the following syntheses.A mixture of (15R)- and (15S)-12-methoxyabieta-8,11,13-trien-16-ol, prepared from 13-acetyl-12-methoxypodocarpa-8,11,13-triene, was converted into 11,12,16-triacetoxyabieta-8,11,13-trien-7-one (22) via 16-acetoxy-12-benzoyloxyabieta-8,11,13-trien-11-ol.Treatment of 22 with isopropenyl acetate, followed by oxidation with m-chloroperbenzoic acid and subsequent acetylation, afforded 6α,11,12,16-tetraacetoxyabieta-8,11,13-trien-7-one, which was hydrolysed with dilute hydrochloric acid to 12.The ketone 22 was also converted into 13 via 11,12,16-triacetoxyabieta-8,11,13-trien-6-one.The spectral data of 12 and 13 were in good agreement with those of natural nellionol and dehydronellionol.

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 67895-41-4