100990-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100990-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,9,9 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 100990-05:
(8*1)+(7*0)+(6*0)+(5*9)+(4*9)+(3*0)+(2*0)+(1*5)=94
94 % 10 = 4
So 100990-05-4 is a valid CAS Registry Number.
100990-05-4Relevant academic research and scientific papers
GENERAL SYNTHESIS OF 2,5-DIHYDROTHIOPHENES (3-THIOLENES) FROM DIKETO SULFIDES
Nakayama, Juzo,Machida, Haruki,Hoshino, Masamatsu
, p. 1981 - 1982 (2007/10/02)
The intramolecular reductive coupling reaction of easily accesible diketo sulfides by a low-valent titanium reagent (prepared from titanium(IV) chloride and zinc powder) provides an efficient general synthesis of 2,5-dihydrothiophenes.
