642-49-9 Usage
General Description
1,5-Methano-8H-pyrido[1,2-a][1,5]diazocin-8-one,3-(2-chloroethyl)-1,2,3,4,5,6-hexahydro-, (1R,5S)-, also known as temozolomide, is a chemotherapy drug used in the treatment of certain types of brain tumors, specifically glioblastoma multiforme and anaplastic astrocytoma. It works by causing DNA damage and inhibiting the growth of cancer cells. Temozolomide is classified as an alkylating agent and is typically administered orally in the form of capsules. Common side effects include nausea, vomiting, and myelosuppression. Temozolomide has been shown to improve survival rates in patients with glioblastoma multiforme and is considered a standard of care in the treatment of this aggressive cancer.
Check Digit Verification of cas no
The CAS Registry Mumber 642-49-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 642-49:
(5*6)+(4*4)+(3*2)+(2*4)+(1*9)=69
69 % 10 = 9
So 642-49-9 is a valid CAS Registry Number.
