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38217-68-4

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38217-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38217-68-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,2,1 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 38217-68:
(7*3)+(6*8)+(5*2)+(4*1)+(3*7)+(2*6)+(1*8)=124
124 % 10 = 4
So 38217-68-4 is a valid CAS Registry Number.

38217-68-4Upstream product

38217-68-4Relevant academic research and scientific papers

Synthesis and properties of polyamides containing high contents of thioether units

Zhang, Gang,Li, Dong-Sheng,Huang, Guang-Shun,Wang, Xiao-Jun,Long, Sheng-Ru,Yang, Jie

, p. 775 - 781 (2011)

Two kinds of monomers containing the thioether units 4,4′- thiodibenzoyl chloride (T-DC) and 4,4′-bis(4-chloroformylphenylthio) benzene (BPB-DC) were synthesized in two steps and were reacted with diamine-containing thioether (-S-) and sulfone units to pr

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