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75258-07-0

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75258-07-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75258-07-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,5 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75258-07:
(7*7)+(6*5)+(5*2)+(4*5)+(3*8)+(2*0)+(1*7)=140
140 % 10 = 0
So 75258-07-0 is a valid CAS Registry Number.

75258-07-0Relevant articles and documents

A NEW NITRATION PRODUCT, 3-NITRO-4-ACETAMIDOPHENOL, OBTAINED FROM ACETAMINOPHEN WITH NITROUS ACID

Matsuno, Takanobu,Matsukawa, Tomoko,Sakuma, Yoshiharu,Kunieda, Takehisa

, p. 1422 - 1423 (2007/10/02)

Treatment of acetaminophen with an excess sodium nitrite under mildly acidic to neutral conditions results in smooth formation of new 3-nitro-4-acetamidophenol via N-acetyl-p-benzoquinone imine as an oxidation intermediate, which is a well-known, widely e

PREPARATION AND SOME PROPERTIES OF 2H-IMIDAZOLE 1,3-DIOXIDES, DERIVATIVES OF ALICYCLIC 1,2-DIOXIMES

Samsonov, V. A.,Volodarskii, L. B.

, p. 628 - 633 (2007/10/02)

The corresponding 2H-imidazole 1,3-dioxides were obtained by the reaction of cyclohexanedione and cycloheptanedione 1,2-dioximes with acetone, cyclopentanone, and methyl ethyl ketone.The reactions of these compounds with hydroxylamine hydrochloride, NaBH4, a Grignard reagent, and acetic anhydride in the presence of H2SO4 were studied in the case of 2,2-dimethyl-4,5,6,7-tetrahydro-2H-benzimidazole 1,3-dioxide.Bromination of the latter and 2,2-dimethylcyclohepta-2H-imidazole 1,3-dioxide with N-bromosuccinimide gave the corresponding dibromo derivatives, the bromineatoms in which are replaced by acetoxy and hydroxy groups. 4,7-Dihydroxy-2,2-dimethyl-4,5,6,7-tetrahydro-2H-benzimidazole 1,3-dioxide, which was obtained by oxidation with MnO2, was converted to a quinone, viz., 2,2-dimethyl-4,7-dioxo-4,7-dihydro-2H-benzimidazole 1,3-dioxide.

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