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31102-98-4

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31102-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31102-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,0 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31102-98:
(7*3)+(6*1)+(5*1)+(4*0)+(3*2)+(2*9)+(1*8)=64
64 % 10 = 4
So 31102-98-4 is a valid CAS Registry Number.

31102-98-4Upstream product

31102-98-4Downstream Products

31102-98-4Relevant articles and documents

Cycloheptabenzothiazines and Their Diazine Analogues. 2. Formation and Properties of Cycloheptaquinoxalines

Shindo, Kimio,Ishikawa, Sumio,Nozoe, Tatsuo

, p. 1158 - 1166 (1989)

2-Chloro- or 2-methoxytropone reacts with o-phenylenediamine to give 2-(D-aminoanilino)tropone, which upon heating provides 6H-cycloheptaquinoxaline (10a).Upon acidification, 10a reversibly gives a green cation, 9a. 10a is easily converted, especially

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